What's left that has that level of fan interest plus legal circumstances keeping it away from DVD?
With the 3 shows you mentioned about to come out plus China Beach's recent release, I think there are still plenty of shows that people would like to see that may prove troublesome to release, but none with same high level of fan interest/pop culture icon status.
That said, the 5 troublesome shows I personally would most like to see get worked out and released are:
Burns & Allen (plus the post-Gracie season) - Issues: some episodes are PD; possibly some music issues from that season without Gracie
Dragnet (50s version) - Issue: some episodes are PD
Maude (Seasons 2 - 6) - Issue: music
Chico & the Man - Issue: music
WKRP (90s revival) - Issue: music (While Shout Factory has apparently been willing to try to get as much of the original music as possible for the upcoming release of the original series, I doubt they would be willing to make as much effort for the 2-season revival. It wasn't a great series, especially when compared with the original, but it had some good moments. Plus, the completist in me would like to have the full WKRP saga - if done right.)