i'm saying this now; POSIX will never be a first class citizen on windows - we might get shims in /proc and /dev, but windows will never run from POSIX. as long as Win32 exists (and lets face it, that's not going away for a long time), we're basically stuck with running a docker container with linux on it in windows.
and that might be all you need. but for many *nix people, this is no where near enough.