the first major patch for war is slated to come out in the next months. One of the major features is the implementation of the Knight of the Blazing Sun, and the Black Guard classes. These two classes were cut from the game due to balancing issues, but as promised Mythic has given them to us as a free content patch.

For information on the patch and all that it's coming with, here's the link

http://herald.warhammeronline.com/warherald/NewsArticle.war?id=386

edit for tl;dr:

1. They will be adding the Black Guard and Knight of the Blazing Sun by the end of December.
2. They will be implementing ways for PCs that are not high end to further improve frame rate.
3. They will be improving the mail system.
4. Drops in all RvR will improve, drops will significantly improve for open RvR.
5. More High to Mid/Low population server transfers. Mythic refuses to do the other way around.
6. 14 new quest chains, 2 new lairs, 'Many' new tome unlocks.
7. Mythic has a buff weak careers policy instead of a nerf strong careers policy (although they worded this in a way to save their rears if they do nerf someone).