Dunno, I'd rather have new characters, especially ones that haven't had much time to shine in a Mario game recently, if at all, like Wario, Waluigi, DK and Yoshi. Could also throw in Pauline or Daisy, I'm just tired of always seeing the same group, especially when there's so much to pull from. It doesn't help that design wise Bowser's Fury, at least from what we've seen, doesn't really scream 3D World to me. You said it yourself, it seems more like something you'd see in Odyssey, there I'd actually be really excited for. But given it's a 3D World port, I'd rather have more 3D World content and not just some dumb stickers and an online mode that more than likely will be bad.
Ultimately I like both styles of Mario, linear and open world, it just seems like a strange decision to add what seems to be an open world game to a linear title, especially when even Nintendo itself distinguishes between both styles.
Also nice to see you're back dude.