It's one of the things I have on the back burner, I personally believe that WASI doesn't go far enough. WASI limits filesystem calls to the actual filesystem for one. I think it's better to have a homogeneous view of things so that the only difference between local and remote resources is what the platform does.

WASI is in very early stage right now. We already have a start of a proposal to unify reading/writing from file and network streams. Unifying filesystem paths with URLs is something that's certainly in scope beyond that.

How can I get involved? I don't have any major users behind what I'm doing, but I would like to help make future standards more generic.

The easiest way to get started is to file an issue in the issue tracker at https://github.com/WebAssembly/WASI/issues and we can start discussing it!