CVG shot a third part to their Wrath of the Lich King article. This time with descriptions of some of the dungeons and regions to be expected in the expansion and the names of the King of Ice Trolls in Zul’Drak, and the King of the Vrykul.  Drak’Tharon Keep is where Prince Arthas found the fabled and cursed Frostmourne runeblade. Utgarde Keep is inhabited by the Dragonflyer Clan. The article offers a few good details. Check it out here.