I'm starting to doubt if PG will reveal anything at all. It's the 10th and he hasen't said a word, and with all the drama and rumours about him maayyybe being a bribed PR guy.... eh, who knows.
Still doubt he'll say anything. I guess we will just have to accept the lackluster roster and hope for some cool game modes or something. Even if they add DLC characters later that will be for just that, later.