You know what with the Peanuts trailer? You can assume it's not going to get screwed up, but here's the thing: the trailer actually caught the spirit of Peanuts, IMO.
You have Charlie Brown, who constantly gets upstaged by his comically pain-in-the-ass dog (if you don't think Snoopy was a pain-in-the-ass, you weren't paying attention), but that's okay, because Snoopy's still the boy's best friend (and I'm a HUGE dog person, so dogs-as-best-buddies is a trope that is hard to screw up with me).
I get how people may not like Peanuts, the same way people don't like, say The Prairie Home Companion or Norman Rockwell. It's not bitingly clever (like Calvin and Hobbes), the artwork and writing are simple and unchallenging, and its old-fashioned sensibility either works for you or doesn't. That's OK. It brought a smile to my face.
Topic? I hope if Bob is correct, this is the end of Disney trying to make Walter "happen". I've never seen a Muppet I've hated...like, at all, really.