Here we go again!
If you are interested in getting a new WWE title, wait until 2k14 comes out first, so that you can see what they changed, took out, put it, or improved. If you like the changes, then buy it.
If the 2k14 changes are no good, check the previous titles and see if they are more your speed.
Just don't buy every single WWE title, just because of it's brand (unless you are a die-hard collector or something). It's a waste of money and time.