Hero Classes

[Dekk]

Более подробная информация (точнее об этом как-то обмолвились):
Army of the Dead - Spell summons undead minions (ghouls) to fight for Death Knight. These creatures run around and attack things at random.
Unholy Embrace - Target is embraced by a silhouette of darkness for 6 seconds, corrupting any healing spells and effects cast upon or currently affecting the target to cause damage for 50% of their healing potential instead of restoring health. Any damage shields cast upon or currently affecting the target will also be instantly consumed, dealing 50% of their absorption potential in damage. Once afflicted with Unholy Embrace, the target cannot be afflicted with Unholy Embrace again for 1 minute.
Death and Decay - An area-of-effect damage spell.[9]
Blood Boil - A damage-over-time ability that after the duration refreshes two of your blood runes.[9]

Взято с http://www.wowwiki.com/Death_Knight_%28hero_class%29
Ещё есть инфа, что у него будет возможность к самолечению, а призваные существа будут иметь отличную от стандартных петбаров систему управления (но это уже выковыряно с форумов).