Next Patch: Battlegrounds
 

Also in the next patch is Battlegrounds! There are a few new interface bits which you can see a screenshot of here. A window, as well as an icon by the mini-map, and some information at the top of the screen.

If you meet some specific criteria, you can try this out on the test server (or go there and try out some modding to get a jump on the patch) - more information than I want to post here, so just go to www.worldofwarcraft.com, and scroll down til you see the post "Public Test Realms Now Open!" - then follow the instructions. The first week of testing is almost up, so even if you don't fall within the critera to log on to the test server yet, you will soon.