I know she is, i messed up the wording. She wont be in, third party characters are all part of nintendo's history barring 1 which was somebody who begged him to be in the game

What??????? More than Sonic? Where have you been in the past decade? 

Andy (Advance Wars series)
He'd be similar to Pokémon trainer in brawl and have a range of chibi vehicles from advance wars which he can switch between (tanks, battle copters etc.). For his Final Smash he would recover 40%, become invincible and would become an upgraded version of whatever unit he was in when he activated the final smash( tank would become a medium tank, battle copter would become a bomber etc.) but would lose the ability to switch unit untill the final smash ends.

Sceptile

Cia

I'll list the three unannounced characters I think are most likely, but I would also like to mention a serious dark horse...
I'll go with Takamaru, Mach Rider, and Captain Toad...
The dark horse is an Atlus character...
Given the eventual release of SMTXFE, I think there is at least a slight chance of Atlus getting some love...
I think Jack Frost would be perfect for Smash...
Likely???
Probably not...
But I don't think it's completely outside of the realm of possibility...

i don't really know. the only one i can think of that i think stands a reasonable chance is K. Rool. but as past has shown reason isn't really a factor in how Sakurai picks his slots.

i would think that 3rd party is done. going beyond the 3 of Sonic, Mega Man and Pac-Man would be too much imo. we're still lacking a new retro WTF character (along the lines of Ice Climbers, R.O.B., Game & Watch) although Wii Fit Trainer already fulfills the WTF role quite nicely.

i'm still pulling for Paper Mario.

... Sonic Advance 1, 2, 3, Sonic Battle, Sonic Rush, Sonic Rush Adventure, Sonic Adventure 2 Battle, Sonic Adventure DX, Sonic and the Secret Rings, Sonic and the Black Night, Sonic Boom, Sonic Lost World, and Mario and Sonic at the Olympics all say hi.

Sonic Colours Wii & DS and the Dark Cronicles also welcome you.

Also, Sonic 06 not being on Nintendo is a really good thing. A console that doesn't have 06 wins +20 points automatically.

She's a character getting lots of atention on an exclusive wii u title. That certainly puts her in the realms of good possibility.

Notice the word "major". How many of those sonics got the exposure of bayonetta 2?