Stage 1: Karazan, Groues's lair and Masiliton's lair will be opened.
Stage 2: Viper Temple, Storm Fortress, Arena Season/kloc-0.
Stage 3: Battle of Mount Hyjal, Dark Temple and Arena Season 2.
Stage 4: Zuaman and the Arena Season 3.
Stage 5: Sunwell and Arena Season 4.
TBC version characteristics
1, and the upper grade limit has been raised to 70.
2. Two brand-new races: Blood Elves and Delaney.
3. PvP subdivision ranking system based on arena.
4. Improved PvP honor system.
5. Sunwell Heights behind Quel 'Salas, the new birthplace of Delaney and blood elves.
6. The complete New World Outland is located on the other side of the Dark Gate.
7. More advanced dungeons are located in Azeroth and Outland.
8. You can choose the difficulty of dungeon setting.