The level cap will be increased to 60.
The gods have seen fit to grant Talents to Druids and Shamans.
Stratholme, Blackrock Spire, and Winterspring areas will be added.
More Warlock-specific quests have been put in place.
Mana and health regeneration gained from Spirit has increased.
You can now right-click on gear in your inventory to equip it.
Experience gained from instance dungeons has been increased.