Alright everyone. It's time for CONTROVERSIAL SPECULATION TIME WITH EDGY!
As we all know, Sakurai has yet to put in Wolf or Krystal. This could seem a little bit troubling for us, but who's to say that Wolf is the one coming. What if, the reason why Wolf hasn't appeared yet, is because he's not coming at all. Think about it, it's really weird that other famous veterans like Mewtwo, Lucas, and even Roy have all come back, but not Wolf, and he's been one of the highest requested characters ever since he was deconfirmed. It's possible that Sakurai feels that Krystal is more of a priority than Wolf. If I remember correctly, Sakurai was originally planning to have Krystal INSTEAD of Wolf in Brawl, but went with Wolf because of time. Now Sakurai has time to do Krystal. However, does he have the time to do both? The more time passes by, the more I feel this scenario could be a possibility.
Note: This is not bashing Wolf AT ALL. This is just speculation, meaning this could very well be wrong. Wolf still has a strong fanbase and is very possible. Also the possibility of having both could still be viable. I'm just giving a possible reason of why I feel Wolf has yet to return.