Okay so. I guess I'll try to explain this leak more clearly.
https://boards.fireden.net/v/thread/417573090/#q417579164
It all first happened on 4chan the 26th may A user claimed to have seen the game and did a little AMA.
People asked different question-
While fake 4chan leaks are a daily things here. This one in peculiar doesn't play safe compared to the dozen of Bandana Dee/Rex/Decidueye leak. So the "leaker" answered some questions and we could get this out of it.
>No/barely any cuts...which seems to be coherent with Emily Roger/Simon leaks.
>No FE Newcomers or Zelda Newcomers.
>K.rool/Ridley/Sora/Geno/Snake/Some sort of Pikachu (Mimikyu)/wolf/Takamaru are in
>The artstyle is akin of Wii U, slightly darker colors and more details.
>Ice Climber/Simon which is like that previous Leak.
>Waluigi is still an AT. New Protoman AT.
Later that day, on Reddit a user posted a bunch of picture in an imgur link hinting at some newcomers.
https://imgur.com/a/H8bcips
The thread soon got deleted (by him or administrator?) He then posted the answers on a Google docs to all of them
https://docs.google.com/document/d/1-s2Ckpz0P45gBt7epFoShzXOUaFZhx2ZiteY6XaCNMk/edit
We don't know if the two "sources" are the same guy or not, or someone piggybacking the first source.
And that's basically the leaks... And two day later we have people coming out saying they have infos.
There a high chance it's fake, after all, it's a 4chan leaks... But that one got attention from Sourcegaming in their video- which is why it got popular