I certainly have here and there (what, with how this game is talked about on every corner of the Internet), and the rest of the predictions are certainly common enough.
Look in the mirror and ask yourself if you really, honestly, without a doubt, think some teenager from America really knows the roster from a vaguely developed product. Really.
I was just saying that it is interesting that you came across a list with Wii Fit Trainer on it.
If I look in the mirror and ask myself if I honestly think some random guy knows the roster from a vaguely developed product... my answer would be no. That answer is as fallacious as "there must be other life somewhere! Look how big the universe is". You also seem pretty defensive. It could just be the way I am reading it. However, in my experience, that usually points to dishonesty. Maybe you have seen her on a few lists. If you didn't immediately think that the assumption was absurd, I would question your logic. If I told you AR man was in the game, you would dismiss me (rightfully so).
That is what I am getting at. If I ever saw Wii Fit Trainer on a list, I would automatically assume the individual was mentally challenged. Similarly to when I see Llyod Irving, or any other obscure 3rd party character.
That argument isn't enough for me. "surely someone knows the roster in a world so big" that is just making an assumption without any evidence. Is it possible? Of course! Is it likely? No... most people who made cohesive rosters would have never put Villager or Wii Fit Trainer in. Secondly, Megaman could have been hard to license. If Capcom said no, that would be the end of it. So we are fairly lucky to be getting Megaman. Hence, nobody with half a brain would put a 3rd party character that isn't Namco on their list because they don't understand licensing. So that is why pretty much every list fails to pass the internet test. There are too many factors to consider and every individual has a bias. That was all I was getting at.
Back on topic: If we were to be speaking logically (which we can't at this point) Yoshi is next.