Peach will obviously be in.
Chrom will most likely be in.
K Dx3 and Meta Knight will be in.
Toadette will be in... after Daisy, Waluigi, and Toad are in.
I don't think Luigi will be going anywhere, mostly since Nintendo put so much emphasis on the character lately. I could possibly see them re-doing his move-set to include his Mansion abilities or something like that.
Quote:
Sakurai: The reality of the situation unfortunately is that there are certain limitations on the 3DS, so we're forced into a situation where we may need to reduce some characters to a certain degree, but we're really working hard to include as many characters as possible.
I hope this means a lot of characters don't get nerfed though