So I see a bit more character modding than when the game launched, and it doesn't seem like the "locker problem" is as much of an issue anymore, but it still doesn't seem like adding in new characters in quite as prevalent as I had thought it was gonna be.

Why?

I'd thought about doing a little Samus character as a goof (nothing serious and probably for my own personal use) but there doesn't seem to be a lot of info being disseminated about modding the game as either a consumer or creator.