Diddy was announced to return today. I never really used him, but I want as many original characters to return. I wasn't expecting Sakurai to announce Dixie as a newcomer so soon after Little Mac was just unveiled, but I was surprised last week by the timing of showing Little Mac instead of Dixie because I still expect Dixie to be in the game. With Donkey Kong Country Tropical Freeze set to release, it seemed perfect to unveil a new DK character. I don't think this means she's not playable. Cranky is far less likely though certainly welcome.
It would be nice if Sakurai checked in on Nintendo's various teams to see the latest games in development so he could incorporate them into the latest Super Smash Bros. Besides Roy, Super Smash Bros. is typically a release or two behind. Sakurai was spotted visiting Platinum Games almost two years ago so that could be something. I've been thinking about how to incorporate The Wonderful 101. It could be as easy as just making Wonder Red playable with his Unite Morph as his Final Smash, but I think it would be better and more suitable of the Super Smash Bros. series if the seven main Wonderful Ones were one character. Having them all on-screen at the same time is probably not going to work, but cycling between seven movesets means not getting to certain characters in short matches. It probably wouldn't work if switching was automatic, but would it work if switching characters was done at random? As in, the player prompts when to switch but unlike Pokemon Trainer, there's no set order so switching from one Wonderful One would yield any of the other six. That would certainly lend itself to the hectic nature of the series though it may be too complex for a series that has added depth without becoming complicated.