This may be a little early but I've read a few rumours this past week.

- THQ has reportedly improved the CAS Layer count on the PS3 version of WWE '13 from 32 to 64 and improved the Create-A-Superstar mode.

Speaking of THQ, has an article up where Take Two CEO Strauss Zelnick predicts they won't be around much longer:

"THQ has had some good games, but their quality levels aren't even remotely ... the quality hasn't measured up. THQ won't be around in six months."
I've also read that the New Age Outlaws are supposed to be in this years game and that it will feature some more Attitude Era stars.