We have heard that Nintendo is teaming up with Namco for this project which, which isn't the first time they have worked together.
I had some ideas for a roster for the game which includes some characters from Namco that have appeared on Game Cube games.

Mario- Super Mario Brothers
Luigi- Super Mario Brothers
Bowser-- Super Mario Brothers
Peach- Super Mario Brothers
Yoshi- Super Mario Brothers
Sonic-Sonic The hedgehog
Knuckles-Sonic The hedgehog
Shadow-Sonic The hedgehog
Tails-Sonic The hedgehog
Link-The Legend of Zelda
Zelda/Shiek-The Legend of Zelda
Gannondorf/Demise -The Legend of Zelda/Skyward Sword
Kirby-Kirby Series
King-DeDeDe
Ness-Earthbound
Lucas-Mother
Poo-Earthbound
Starman-Earthbound/Mother
Pikachu-Pokemon
Lucario-Pokemon
Jigglypuff-Pokemon
Mewtwo-Pokemon
Pokemon Trainer (changing pkm trainers costume, changes the trainer to diff pokemon trainers from other games. which also changes Starter pokemon.)
Marth-Fire Emblem
Roy-Fire Emblem
Lyn-Fire Emblem
Ike-Fire Emblem
Matthew-Golden Sun Dark Dawn
Karis-Golden Sun Dark Dawn
Agatio-Golden Sun 2
Karst-Golden Sun 2
Captain Falcon-F Zero
Blood Falcon-F Zero
Samus Aran- Metroid
Fox- Star Fox
Falco- Star Fox
Wolf-Star Fox
Kos-Mos- Xeno Saga ( Diff Costumes from the game series)
Lloyd- Tales of Symphonia
Kratos- Tales of Symphonia
Sheena-Tales of Symphonia
Pac-Man- Pac-Man Series
Mr. Game & Watch-Nintendo handheld series
Guest Star Character- Megaman
Guest Star Character- Zero
I compiled this list based on famous games seen on GC NDS and Wii

If it comes with a sash as a pre order bonus even I might buy it and I don't even like the SSB series, preferably in blue.

They just HAVE to include green sash XD

Seriously though, I think that would be a great roster, but don't get your hopes up becasue it's a pretty ambitious list.

P.S Welcome to the NL community!

Thanks, Been looking for a good community to join for nintendo, who seems to be the only game company doing things right at the moment.

Great to see you're liking our game, Xenokal.
Click here for an exclusive sneak peak at the amazing BGM mus...

I'm still waiting for the official announcement of Super Bash Sisters!

Oh and that list needs moar Wart & Birdo!

If I've seen a thread for this, I've seen a million.
EDIT: Of course you wouldn't have seen them, Xenokal, sorry.

xD no problem and its XenoKAL not KAI lol

@Xenokal Ahh.

If you'd like to post your ideas for SSB for Wii U, please feel free to join this discussion here. Thank you! :3