DK information on WoW Site
Blizzard wraps up the previously released information on their site:
Simply have a character of at least level 55 on the World of Warcraft account you play, and you will be able to create a new level-55 death knight of any race (if on a PvP realm, the death knight must be the same faction as your existing character). Upon entering the world, your neophyte death knight will undertake a series of quests designed to teach you your new abilities. You will be able to create one death knight per realm, per account.
Class Roles
- Tank: The plate-wearing death knight is a capable tank for small groups as well as raids. His or her damage output while tanking will be respectable.
- DPS: The death knight can also spec and gear for a melee DPS role, which will draw upon many debilitating disease effects as well as direct damage and instant attacks.
There’s of course plenty more on the Wrath subsite.

