As no one's mentioned it yet, there needs to be a DVD release of Ralph Bakshi's Cookskin, a.k.a. Street Fight. I've only seen it on YouTube, but it was a shorter version. I've love for both to be on the release, as the shorter version actually has a pre-credits scene not in the longer cut; I know, talk about a pipe dream.
I'll second The Super Cops, a film I've never even seen before but have heard rave reviews about.
A widescreen version of Showdown in Little Tokyo would be rad.
The full version of Superman IV (you know, the one that is 2 hours and 15 minutes long) would be appreciated, rather than brief unmastered clips that were on the latest DVD release of the film. Then again, there are longer TV cuts of the other three that we'll probably never see in an official DVD release, at least.
Seeing the uncut Friday the 13th movies... just to see what the difference is. All of them are only on Japanese laserdisc, I believe.
Sure, it's awful, but Skidoo should be on DVD, and in widescreen too.
And finally, I have a feeling that Song of the South is unofficially grandfathered, right?