The first day of Blizzcon 2011 had the announcement of the new World of Warcraft expansion, known as Mists of Pandaria. The expansion will come with a new playable race from the new maps, the Pandaren. As it sounds, they are a panda-like race of humanoid bears.
The new Pandaren race will be monks and the new expansion will include the following adds:
More faction and similar battle will be added and the WoW team has said that the first set of adventures in Pandaria will be in the Jade Forest and surrounds as the new continent is introduced.
Gamertube has video from Blizzcon with some visuals from the expansion.