It would be cool if there was some standardized "make" utility for multitrack audio, where you could distribute component tracks, and people could fork, come up with their own mixes, effects, mastering, etc. and generate a text file that contained all the metadata required to bounce the tracks down. Of course, effects would be a problem, since most of them are commercial and everyone uses a different toolbox of effects.

I'm sure if everyone agreed on a DAW suite, something like this would be rather easy to implement.