What's in Store for Death Knights in Patch 3.1.0

As the Tank Hunter posted in his recent post, Patch 3.1.0 is on the PTR and will likely be released in April barring any major obstacles. I decided to look into it to see what's in store for DeathKnights, and myself in general:

General
All Ground Mounts may now swim without dismounting the rider. Flying Mounts still may NOT, and will dismount the rider upon entering water. (Like I want to swim on my dragon mount- it doesn't go in water anyway, it just "skims" the surface.)
Ulduar is now available for limited testing. Please visit the Public Test Realms for more details. http://forums.worldofwarcraft.com/board.html?forumId=11572
Players at maximum level will now be able to visit their trainer to pay a one-time fee and access the dual talent spec feature. (not too sure how this will effect a DK. we shall see though)
A new Gear Manager feature has been added. Players will now be able to save gear sets for easy gear switching. (Sounds good, but from what I hear, we'll still have to carry it in our bags)
New high-resolution player textures for Northrend armor sets have been added. Players can enable this feature by setting Player Textures to High in the Effects Panel of the Video Options. (more cause for lag?)
Players can now return items purchased with an alternate currency back to the original vendor within 2 hours of the purchase time for the original cost of the item. Stackable items (such as Frozen Orbs and gems) and charged items that can be purchased with an alternate currency are not eligible.
Confirmation boxes have been added to purchases over 150 gold.
The achievement Brew of the Year has been removed from the Brewmaster meta-achievement. The achievement Brew of the Month has been added in its place.
Noblegarden has been redesigned into a week-long holiday with new items, quests, and more. Various achievements have been added, including the meta-achievement Noble Gardener, which is now required for the meta-achievement What A Long, Strange Trip It's Been. (Happy Easter? What was it previously? 2 days?)
Copied Test Realm characters will no longer be copied with their achievement history in order to better facilitate the character copy process.
PvP

Now for General DK stuff:
Death Knight
Blood Boil's damage increased to make up for Pestilence no longer doing damage. (Did they fix it where the DnD doesn't work half the time?)
Blood Boil now does some damage to undiseased targets and extra damage to diseased targets. Its radius has been decreased. (Works for me, but the decrease in radius is a downer, esp when trying to hold aggro on a large group)
Blood Plague: Now lasts 15 seconds untalented.
Death Pact: This heal cannot be a critical. (drat. another nerf- this was my emergency backup heal)
Frost Fever: Now lasts 15 seconds untalented.
Frost Presence: Magic damage reduction is now 10%, down from 15%.
Howling Blast: Base damage and scaling doubled. This ability no longer deals bonus damage to targets with Frost Fever. Cooldown increased to 10 sec.
Pestilence does no damage and has only one rank. (eh?- so all it does now is just spread the disease? can we say nerf???)
Plague Strike and Blood Plague no longer remove hots. Plague Strike's damage increased quite a bit to compensate.
Raise Ally has a >15 min cooldown to keep it out of Arena. (looks like only one ghoul raised per boss now, guys? sorry)
Raise Dead: Duration lowered to 60 sec. and cooldown lowered to 3 min. The cooldown on this ability now begins when the pet dies rather than when it is summoned. (dang. Nerf the time, but lower the cooldown by one minute? Looks Like I'm going to do a respec to include Master of Ghouls as well)
Rune of Cinderglacier now procs per minute instead of a 5% chance.
Rune of the Fallen Crusader: This weapon enchant now provides only 15% strength, but its chance to proc is doubled.
Rune of Razorice now affects Frost damage done by the DK only, but stacks up to 10%.
Strangulate no longer does damage and has been reduced to 1 rank.
Talents

Blood
Abomination's Might: This effect can now also be caused by Death Strike.
Blade Barrier: Now grants 1/2/3/4/5% damage reduction instead of 2/4/6/8/10% parry.
Blood Aura: Replaced with Improved Blood Presence. This allows the deathknight to keep the healing from damage done bonus of Blood Presence in any presence, and increases healing received while in Blood Presence.
Blood Gorged now grants armor penetration instead of expertise.
Bloody Strikes now increases Blood Boil damage instead of Pestilence.
Bloodworms now heal more.
Dancing Rune Weapon: Damage done by this pet reduced by 50%, but duration doubled.
New talent: Improved Death Strike. Increases Death Strike damage by 10/20.
Hysteria: This ability now causes the target to lose health rather than take damage.
Might of Mograine: No longer increases critical strike damage bonus and instead increases damage on its listed abilities by 3/7/10%.
Dancing Rune Weapon: Fixed a bug making it trigger an unusual number of effects from the weapon equipped by the Death Knight. In addition, it will now only echo Death Knight spells whose primary purpose is dealing damage. Also corrected a bug making the effect last 8 seconds longer than intended.
Scent of Blood will now proc on a dodge, parry or taking damage, and internal cooldown lowered to 10 from 20 sec.
Sudden Doom now procs a free Death Coil instead of requiring you to push the button. Ranks reduced from 5 to 3.
Vampiric Blood: Cooldown increased to 2 minutes from 1 minute.
Will of the Necropolis: This ability now has a 15 second cooldown on how often it can occur.
Frost
The following talents have moved in the Frost tree: Runic Power Mastery, Glacier Rot, Killing Machine, Chilblains, and Endless Winter.
Black Ice now grants 2/4/6/8/10% Shadow damage in addition to the Frost damage.
Black Ice: Frost Damage bonus lowered to 4/8/12/16/20%
Blood of the North is 3 ranks instead of 5 for the same effect.
Chilblains: Now a 15/30/50% movement speed debuff (up from 30%). Moved to position currently occupied by Glacier Rot.
Endless Winter: Moved to position currently occupied by Chilblains.
Frost Aura: Replaced with Improved Frost Presence. Allows the deathknight to keep the health bonus of Frost Presence in any presence, and decreases magic damage taken while in Frost Presence.
Glacier Rot: Third rank added, and damage bonus increased to 7/13/20. Moved to position currently occupied by Endless Winter.
Glacier Rot: Third rank added, and damage bonus increased to 7/13/20%.
Guile of Gorefiend: No longer increases critical strike damage bonus and instead increases damage on its listed abilities by 5/10/15%.
Howling Blast: Swapped positions with Hungering Cold in the talent tree, and damage bonus to targets afflicted by Frost Fever reduced from 100% to 50%.
Icy Talons - This talent how has a new icon.
Lichborne: No longer improves your chance to be missed.
Runic Power Mastery down to 2 ranks.
Unbreakable Armor: Cooldown increased to 2 minutes from 1 minute.

Unholy
Blood-Caked Blade: Now has a 3 second cooldown on the effect.
Bone Shield: Cooldown increased to 2 minutes from 1 minute.
Desecration: This talent now has a 100% chance to be triggered. Additional points in the talent increase the damage bonus and snare magnitude instead of increasing the chance.
Magic Suppression: Now has 3 ranks (down from 5) for 2/4/6% magic damage reduction.
Epidemic: Epidemic now has 3 ranks (adding an additional 3 sec of disease duration). Magic Suppression is 3 ranks (down from 5) for 2/4/6% magic damage reduction.
Master of Ghouls: Now also reduces the cooldown on Raise Dead by 60 sec.
Necrosis: Can now only be triggered by main hand attacks.
New talent: Improved Death Strike. Increases Death Strike damage by 10/20.
Night of the Dead: Redesigned to grant a flat reduction on cooldown to Raise Dead and Army of the Dead instead of a reduction from using abilities. (something for me to add :D)
Outbreak: Increases the damage of Plague Strike by 10/20/30% and Scourge Strike by 7/13/20%.
Scourge Strike: Damage increased.
Outbreak: Increases the damage of Plague Strike by 15/30/45% and Scourge Strike by 10/20/30%. Scourge Strike: Damage increased.
Outbreak bonus for Scourge Strike lowered to 10/20/30%.
Scourge Strike: Damage increased.
Unholy Aura: Replaced with Improved Unholy Presence. Allows the Deathknight to keep the movement speed bonus of Unholy Presence in any presence, and increases rune regeneration rate while in Unholy Presence.
Unholy Blight and Summon Gargoyle have swapped places in the Unholy tree. Gargoyle is the new Unholy 51 talent.
Glyphs
Death Knight
Glyph of Blood Boil: Now only applies a snare to diseased targets.
Glyph of Dancing Rune Weapon: Increases the duration of Dancing Rune Weapon by 10 sec.
Glyph of Dark Death: Increases the damage done by Death Coil by 15%.
Glyph of Death Coil: Reduces the cost of Death Coil by 8 runic power.
Glyph of Disease: Your Pestilence ability now refreshes disease durations on your primary target back to their maximum duration.
Glyph of Howling Blast: Your Howling Blast ability now infects your targets with Frost Fever.
Glyph of Hungering Cold: Reduces the cost of Hungering Cold by 10 runic power.
Glyph of Plague Strike: Bonus lowered to 20%.
Glyph of Strangulate: This glyph has been changed to reduce the cooldown by 20 sec.
Glyph of Unholy Blight: Increases the duration of Unholy Blight by 10 sec.

Other
Hearthstone: Cooldown has been reduced to 30 min. down from 60 min.
Darkmoon Cards of the North will now take three seconds per card to create.
Divine Hymn will now trigger Illustration of the Dragon Soul.
Frozen Scepter of Necromancy now sounds like other maces.
Heavy Junkboxes will no longer have deprecated poison materials.
Magic Dust now has a 10 second PvP duration.
Old Naxxramas Shoulder Enchants will now soulbind items.
Outrider's Lammellar Legguards and Sentinel's Mail Leggings have had their costs reduced to the correct value.
Pack of Endless Pockets can now be mailed.
Paladin Healer PvP Set Bonus: The bonus for Holy Shock healing has been reduced to 10%.
Patroller's Pack now sounds like a bag.
PvP Trinkets will now break Shackle Undead.
Several beverages missing from the "Beverages Consumed" statistic have been added.
Several foods missing from the Food Eaten statistic have been added.
Sigil of the Frozen Conscience: The bonus to Icy Touch from this relic has been reduced to a value appropriate to the item’s level.
Sprite Darter Eggs: May now (very rarely) drop from Sprite Darters in Feralas. Note that only Horde characters can attack and kill Sprite Darters.
Thunder Capacitor again requires four charges.
Thunder Capacitor's cooldown functions.
Tiny Emerald Whelplings: May now (very rarely) drop from Adolescent Whelps in the Swamp of Sorrows.
White Tickbird Hatchling is now classified as a Pet. (It wasn't already?)

Bug Fixes
Dancing Rune Weapon: Fixed a bug making it trigger an unusual number of effects from the weapon equipped by the Death Knight. In addition, it will now only echo Death Knight spells whose primary purpose is dealing damage. Also corrected a bug making the effect last 8 seconds longer than intended.