Herna er smá preview af nyja TBC instance sem á að vera eins og Onyxia með stages,
http://www.youtube.com/watch?v=YwsHY-zFfnE
Magtheridon
A Pit Lord of great power who ruled over Draenor (now Outland) and had under his power vast legions of Fel Orcs, Succubi, Voidwalkers, Doomguards and even some Eredar. His power remained undisputed until he was overthrown by the combined forces of Illidan Stormrage, Prince Kael'thas, Lady Vashj and Akama and their blood elf, naga and Draenei warriors. He is currently imprisoned in the Shattered Halls instance in Hellfire Citadel in Outland. He also makes a brief appearance in the Blood Furnace instance.
Mannoroth
Main article: Mannoroth
Mannoroth (also known as “Mannoroth the Destructor”) was the leader of the Pit Lords and Archimonde's second in command. When the Burning Legion first invaded the world of Azeroth, Mannoroth battled against the demigod Cenarius. It was he who originally corrupted the Orcs by making them drink his burning demon blood. This was called the Blood Pact. Mannoroth was killed by the Orcish chieftain Grom Hellscream. Hellscream sacrificed himself to slay Mannoroth in an effort to free the Warsong clan from the Blood Pact.
According to the World of Warcraft expansion, Magtheridon is being held prisoner in the Hellfire Keep, located in Outland. Before this it was commonly accepted he had been killed by Illidan and his forces. Magtheridon's Lair has been confirmed by Blizzard to be a quick, raid encounter, similar to that of Onyxia's Lair. It will be a raid wing of the Hellfire Citadel dungeon.