You realise that by quoting him you remove the entire purpose of his spoiler, right?
And also that this is a thread where spoilers are allowed because it's literally about an upcoming game.
Anyway, this roster is awesome but not because of the newcomers. Only non-echo newcomers I care about are the Belmonts and Isabelle. Ridley I hope surprises me at launch because my reservations are essentially he seems out of place in gameplay still, K. Rool is fine but I think there were better options because he doesn't really add anything to the roster, Incineroar is dumb because Pokémon didn't need a new representative, but the actual gameplay of it looks awesome so I'm pretty much fine with it, and I would be hyped for Inkling but honestly I really don't like their moveset; the ink gimmick is gimmicky and seems impractical, and the rest of their moveset thus far hasn't been shown to be good enough to warrant the ink recharge nerf.
The newcomer I'm by far most excited about is Piranha Plant. Watching the Nintendo Direct today, when Piranha Plant was revealed I actually screamed. It's the only character this has happened to me for in SSBU, and in SSB4 it happened a few times.
Spirit Mode looks really fun though.