Since everyone's stating the characters we usually know and love, I'll list the ones that are probably mentioned 1/6 times in a usual thread. In other words, the classic yet obscure ones (even though it may the expectations may be unreasonably high)
Characters Added (no specific order):
1) Takamaru
2) Sukapon
3) Prince Sable (or Sable&Richard tag-duo)
4) Meowth
5) Stafy
6) Little Mac
Characters Cut/replaced with (Just to bring in new faces, is all my reasoning
)
Cut Snake for Bomberman (both owned by Konami now anyways)
Cut Sonic for Megaman
Cut ROB for Figher Hayabusa
Cut "Toon Link" For either a revamped Young Link (referencing both Majora and OOT) in some way shape or form. OR, Cut Toon Link for a revamped Young Link that is a throwback and overhaul of the old, classic "Link" (referencing Link to the past/oracle of..) in some way shape or form
Regardless, these two links will be "cell-shaded" but not in the sense of how Toon Link is. I'm sure people understand what I'm referencing to
Mechanics: oh boy, this is going to be a long one; isn't it?
1)Remove tripping/move reduction/and all that nonesense from brawl
2)Make it a bit faster almost like melee, follow the melee framework of techs, balance the roster
3) Meters? (whatever kind that's suitable is fine)
4) More unique and intractable stages, still feel like melee reigns that title over brawl; personally
Pretty sure there's a boatload of stuff I forgot