My Best Guess.....
Here's what I hope for regarding the older VHS releases:
1) UABRS - Release it in 2003 in time for the 20th anniversary of the show. The DVD would be a double disc with the original 12 song format, along with some extra backstage and setup footage (I'm sure they have). Maybe a documentary of the show. The second disc would have the complete show and commentary from the band and Mr. McGuinness on the show.
2) The Best of 1980 - 1990
I would think that this video would be similar to the Best of 1990 - 2000. This should include all the songs on the CD, plus the extra videos of songs not on the CD (e.g. Two Hearts, A Celebration, A Sort of Homecoming). Hopefully they could get the director's commentary too.
3) Release the Zoo TV (Live in Sydney)
4) Release the Popmart in Mexico City
As for the UF and Zoo TV Interference videos, they don't release those, because they would have released most of that footage on the Best of DVDs.
That's my wish......