I skipped Wild World, mostly because I couldn't justify paying $35 for what is basically a slightly-enhanced GC game to myself. Now, though, I'm aching to collect all sorts of furniture and crap and drive myself into horrible, crippling debt.
So I'll be picking this one up, for sure. With 4 people in 1 town at once, hopefully they include things only multiple players can do. Like... playground equipment or something.
Also, it would be cool to have a carpentry mode, where you can build your own furniture and put your own textures on it. That won't happen, but it would probably be the awesomest thing for this game.