Dungeon Preview: Tomb of Immortal Darkness

Deep below the damp graveyards of Duskwood, an ancient evil stirs in the darkness....
Featuring new gameplay mechanics, revolutionary Deep Dark® technology, three challenging bosses, and a host of incredible rewards, the Tomb of Immortal Darkness will be the third dungeon to see the light – well, maybe just a dim spark in an ocean of utter blackness – in the next World of Warcraft content update. Click here for a preview of the epic adventures that await!

Thunderhorn
I just think it's an april fool's joke, well done Blizz :D
That last boss name... Omg so goth!! D:
Ghostlands
Ghostlands
Eonar
Crushridge
The Maelstrom
Steamwheedle Cartel
Shadowsong
Draenor
Haomarush
Kor'gall
Hellfire
Alonsus
Khadgar
Stormscale
Dentarg
Alonsus
Chamber of Aspects
Frostwhisper
Terrordar
Darksorrow
Terenas
Spinebreaker
Grim Batol
Argent Dawn
Alonsus
Alonsus
Ravencrest
God i so wish there was an achievement like this :p
Runetotem
Kilrogg
Aerie Peak
Defias Brotherhood
The Maelstrom
Ragnaros
Ravencrest
Lightbringer
Tarren Mill
Onyxia
Hellfire
Outland