As soon as I saw the reminder for the Smash CP 6 reveal presentation going up on the 22nd, my mind IMMEDIATELY clicked with the Summer Games Fest showcase which will ALSO be on the 22nd. In said showcase Geoff will be making a special game announcement, and as many might be already aware of, Crash 4 got leaked last night. Considering the time window between today (the 19th) up to the 22nd, if that game was going to be Crash 4, perhaps the game leaking wasn't as bad... thinking of the possibility that a tied-in announcement for revealing that Crash will be joining Smash. Now, by this I don't mean that Crash would be revealed within the Summer Games Fest presentation, but considering that both that and the CP 6 Sakurai presents will both be on the same day, it wouldn't be too farfetched to think that perhaps after the ARMS presentation, they might announce a future Smash presentation announcing perhaps two other fighters (or a fighter and a mode).
Ok, I'm done with my wishful thinking for the day.