Am I the only one who thinks this will be an absolute train wreck?
The game's not about your little happy designing, it's not the Sims, stages are there to look nice and they are there for fighting. We are not exterior designers, people!
Seriously, you may as well stamp a big pink label on Smash Bros saying "Woman friendly." No people. Just no.
One thing, everyone would just put a load of random items everywhere. There'd only be a few people who would perfect it and spend that much time on it. I mean, it'd be nice if everyone could make awesome stages, but it's a fighting game, we have short attention spans, I'd get frustrated with it. It's just too much time, and delay for something that wouldn't be necessary.