A lot of the extra clothing pieces that are uploaded are for shanks to integrate into the current mod or they're art asset fixes (like stuff overlapping, that kind of thing) but I make that know when that happens, and they get sifted into the next mod fix anyways. I usually post the raw art files that I make to the community in case someone wants to use them for whatever.
tl;dr All you really need to keep an eye out for is the current mod that
@Shanks_Aka posts, since those will have the .rpy files that code the art assets into the game. There's no guarantee that the other stuff is implemented unless it's replacing an already existing file.