All three launch raids unlock on 9 December with weekly resets: Barrow Deeps, a 10-player raid inside Mount Hyjal with entrances from Hyjal, Winterspring and Blackmaw Hold; Hyjal Summit, a 20-player raid at Nordrassil; and Onyxia's Lair, 40 players in Dustwallow with the Drakefire Amulet required in bags.
The dungeon overview names nine new five-player dungeons and sets Excavation Site: Wetlands at 24 to 29. Tier pieces require a quest chain with group content.