I actually like billybo10k, as he timely discusses the things we talk about here in a very analytical and succinct way, very skeptical of the trash that's often taken as gospel in other "leak videos". I do disagree with his opinions--he wants Steve over Banjo--but he's honest, and thinks Banjo has a much higher chance. He's also the one that convinced me Isaac should be the next first party character for Smash from a new series.
Kinda agree, and I in no way want to insult people who like Isabelle. But from my perspective, in a limited roster, I feel like every character should count. Every character should have multiple things about them that works. Any character, like Isabelle or a Gen 7 Pokemon, who's only reason for being in Ultimate being a singular reason--we need an Animal Crossing rep because it's a popular series, we need a Pokemon because we always have a Pokemon--gets prioritized over other characters who have multiple reasons for being in--moves and unique play style, new characters/settings/music, nostalgia. Popularity is only one of many factors. I came around to accepting Isabelle if she could be an echo, but then had to abandon that once she was a unique character. A unique character--who plays superficially just like another character despite requiring all that work for new animations. In a limited roster. Whyyy.
So Isabelle's inclusion did give me pause--either that means we'll be having more characters than we think and Isabelle's just one, or we have less characters than we think and Isabelle's a significant fraction of that total. And given recent remarks, it seems to be the latter--not the best turn of events. However, even if we don't have that many left, I still think we should end on a bang--and the one character who has everything Smash exemplifies is the bear and bird themselves.