Additional to this there is the Monk race added so having a Pandaren Monk will basically turn your character into "Kung Fu Panda".
Mists of Pandaria is in open BETA testing so if you have not opted in to beta you wont be up for inclusion for BETA testing.
Where to find more information on Mists of Pandara
There is a lot of information on the new Mists of Pandaria at SimplyWarcraft.com http://www.simplywarcraft.com
Here are some screenshots below.