I'd like to point out that everyone was only predicting Simon, and Isabelle AFTER they were leaked by Vergeben. Especially isabelle who was barely mentioned before Vergeben leaked her.
Yeah, everyone and their dog was predicting them but BECAUSE VERGEBEN LEAKED THEM.
He's a trend setter, but Isabelle had the mii costume, missing assist, and mario kart appearances and the whole "I am the face of animal crossing" thing (twitter, website icon, promotional material, over any other character etc.) And that's what was convincing to me personally. Simon lends more credence to him as a leaker (richter might hurt him).
We know in hind sight that the other characters had the popularity polls going for them.
However Ken and Incineroar don't have the same things going for them in my opinion. There isn't really anything to suggest they will be in. If they are in that confiirms his leaker powers.
But I see him as a dead leaker (my prediction versus his) because I say there will be no more pokemon since pokemon additions have always been revolving around replacing pokemon from the last smash game with new pokemon as this adds freshness and keeps the labor reasonable. The second wall for Incineroar is that even if we do get a pokemon Incineroar is only one of many possible contenders. If he says Incineroar, but it doesn't happen, then it will mean he got taken in by the smash speculation and was guessing. (No, get out of jail free card since he said his
main sources confirmed this.)
I honestly think the debate has reached a stage where it can no longer progress until we get more reveals. However I think Incineroar's inclusion or exclusion will end the debate. Even harder if there is no pokemon at all.
We wait patiently in our chairs for the final verdict on Vergeben.