An increase in the level cap to 70
Two new playable races: The Blood Elves and The Draenei
A new profession: Jewelcrafting
The entire new continent of Outland, reachable through the Dark Portal
Arena-based Player vs. Player Ladder System
Improved PvP Honour System
Starting zones in Quel'Thalas and beyond
Many high-level dungeons to explore in Azeroth, Outland, and elsewhere
Selectable Dungeon Difficulty Setting
Flying mounts in Outland
Many dangerous monsters, including epic world bosses
Hundreds of quests
Hundreds of items