So Diddy is in. Sakurai managed to be unpredictable... by being predictable. Take that Inception. So no Diddy-Dixie tag teams. Leaks with those are now dead.
I don't like the idea of Miis. Not because they may possibly not belong... but because of the can of worms they open. If we got Miis, they should be customizable. And we should be able to fight against other people's customizable Miis. But think about it. This is Nintendo. Nintendo. You think that they will let kids fight against Hitler and Bin Laden Miis that immature people would make? I doubt it. So then we can either only see our own customizable Miis and not other players... or we can't customize them at all. See that? Can opened. Worms all over the floor. That what bugs me the most.
Pac-Man isn't a bad choice, he's just what most would consider a "fun" choice. (Of course, that depends on his moveset.) I expect him to make it in, just on the fact that besides him... any other Namco rep would come with a bunch of hate because it's hard to unify under another. A "Tales of" character? Soul Calibur? Tekken? Pac-Man represents the company the most. It HAS to be him. Consider all of the Arcade Mario Kart games and it's a dead giveaway. He will depend on his moveset totally. For me that makes him in the game group as Rosalina. I'm not hyped for her, but I'm not surprised she got in. The moveset will make the (pac-)man. Rosalina got a good moveset and wasn't a Peach Clone, Pac-Man will need a good moveset to not be a Kirby Clone. But I wouldn't say he doesn't belong in.
Also, because I feel I need to say this: thanks to the mods for doing a good job of modding this site. They were good during the Brawl days when I was lurking and hoping that Mewtwo made it back in and now that I'm finally posting, I see them doing their thing here now and I respect it much more. No modding staff is perfect but god, this is so much better then what Gamefaqs has. I barely go there now. That and some of those posts are just rage inducing.