Well Verg has not been wrong yet. Plus hes not saying the game's roster is ending with ken and Inceniroar. think about it, no way those are the last 2. How do you end on a hype with Incenroar and ken?
Plus that box is obviously a prototype mock up. we are gonna get more then 1 newcomer and 1 echo for sure.
How many more remains to be seen. I always knew we were getting a pokemon. Sad its Inceniroar wanted Gardevoir but there is always DLC(and we are for sure getting DLC). And Ken make sense as an echo(even though I think Akuma is the better choice.)
Getting a square character is obvious with how much love Square is showing nintendo, especially after that direct. Geno seems like a Lock for sure but I still think there is a chance we get a Dragon quest rep, as that series is massive in japan, the grandfather of all JRPGs, started on the NES, and is a very important part of video game history. Geno while giving us for sure a big fan request would not be as big of a historical character like say Hero or the Slime. I can see it going either way.
I'm still sure Shadow is going to be an echo, and maybe ms pac man. that would give every third party in the game so far 1 echo, which seems fair.
Shantae I still think has a strong chance going by Sakurais room and the way Wayforward is acting.
a feel like we will still get a retro character. Sakurai has put on in every game hes not going to skip this one. and it would be a 1st party retro.
That leaves I feel 1 more newcomer, and we could get a few more echos(most likely Medusa, Dixie, Black Shadow, and Impa) That newcomer could be Isaac, or it could be Rayman, or it could be Banjo and Kazooie. I base this on we are still missing 3 slots in the music menu. the pokemon and retro won't take it, and Isabelle didn't either. they would have to make it for new series. Shantae would give 1, Maybe Geno but for sure a Dragon quest would(i doubt DQ music is more expensive then FF music, so we would have more then 2), and that last could be from Golden Sun, Rayman, or banjo Kazooie series.