At BlizzCon 2009 we heard a lot of announcements about how stats and attributes, particularly those found on items, will be changed or completely removed. We also learned about a new talent Mastery system that will be implemented along with the stat changes, allowing talents to be more interesting.
World of Warcraft Cataclysm and the events and content patches leading up to it will introduce a plethora of new race/class combinations such as Tauren Paladins and Dwarf Shamans. Warlocks and Hunters are being targeted for major changes, and we have the list of Goblin and Worgen classes available.
The next World of Warcraft expansion pack was announced recently at the 2009 BlizzCon and we have details about the 7 all new zones that will be introduced in World of Warcraft: Cataclysm, as well as zone background and lore, and notable characters.