I hadn't seen this leak until this morning:
https://www.youtube.com/watch?v=XKYZ5I0Qj2o
From PhantomLeak on 4chan. I don't usually buy into leaks like this but I admit, however I would be pretty happy if we got all of these things.
The leak says:
Characters
Incineroar
Geno
Isaac
Bandana Dee
Banjo & Kazooie
Echos
Ken (Ryu)
Shadow (Sonic)
Felix (Isaac)
Stages = 108
New Pokefloats
New PacMaze
Forest Maze
Venus Lighthouse
Spiral Mountain
Assist Trophies
Dixie Kong
Steve (Minecraft)
Rayman
Shantae
They also go into detail about the Spirits mode.
Now, the leaker is claiming the source of this information is the game itself, and not some connection to the development team, or the company that makes the character trailers, but the game. Which... to me, says this would have to be someone literally on the Nintendo Treehouse staff and I just can't imagine that would actually happen. But if we got everything in this list, I think I would be pretty satisfied. I think Dixie seems weird as an assist trophy but that's about it. I'm also expecting DLC after the game launches.
That's like Incineroar and the ballot extravaganza. I wish we were getting that amount of characters but I doubt we'll get that particular group.
Dixie as an AT would be a bummer, and I doubt Shantae has earned that spot yet, but I could see the Steve AT and minecraft stage, and I could see Isaac and Banjo making it along with Ken and Shadow.
All in all I call super fake, but will probably see a couple of things from this actually make it into the game.
Don't let the hostility drive you away from the conversation, the ballot was filled by fans of the game,and we're all just trying to have fun.
I wish we got another serious leak soon to start the hype train again.