WOW - Season 4 "isn't going to start for quite a while" : World of Warcraft General Discussions

Drysc spoke a little about season 4:

We've only stated that Season 2 is moving to honor, Season 1 is being removed, and Season 3 prices will be lowered. Whether Season 4 or Season 2 prices will change from the Season 1 and Season 3 sets they're replacing has not yet been stated.

One thing that's more certain is that Season 4 isn't going to start for quite a while.