If there's been no foward progress, I wonder if going Universal is the only way? Perhaps some kind of independant release through a smaller venue would work better. Universal has the rights to the footage of Jaws, but how much can they claim to a stand alone documentary? Itd be like those Unauthorized Star Trek episode guides and stuff, wouldnt it?
Given all the involvement, stars doing interviews and behind the scenes people from the original film this should be happening and get a release soon. I'd really like to get this on DVD someday!!