World of Warcraft Classic has been receiving waves of content updates since launching last year, tying in with all the material releases to the original game. It's still uncertain if the game will find some'new' expansions such as The Burning Crusade or Wrath of the Lich King. Blizzard has stated it's"not opposed" to incorporating expansions to the Classic experience but no decision has yet been made.
At the time of writing, WoW Classic is currently on Phase 5 of this PVE content program (see below) and the Ahn'Qiraj raid has been unlocked so, as soon as you reach max level, you will have access to a range of raids and World Bosses to handle.
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