I've always loved the idea of all the smash characters just living together in some sort of hotel in between matches. I could totally watch an entire anime about that, starting with all the characters being waved off by their franchises, and then getting to know each other in the smash universe.

That's pretty much how 95% of fan fictions depict how the Smash Bros characters spend their time not fighting. I'm not one for hating! The fact the Palutena trailer began with an anime might (key word:MIGHT) hint an anime on Smash Bros could be starting.