If someone wants to do something for the fans, releasing a full PW/MP era show for the 40th Anniversary of PW/MP/ESL would be awesome.
In my attempt to have a "Complete Live Discography" for Rush, taking a complete soundboard (or officially released) show from every major tour, the PEW and MP tours are two of the few that I don't have complete shows. Sure, there's the St. Louis 80 but it's missing about a third of the show. And as far as I know, there haven't been any complete soundboards from the MP tour. The most that we've gotten are the MP-tour portions of ESL, and the opening movements of 2112 released as part of the 2012 Deluxe Edition, sourced from the Northlands Coliseum – Edmonton, AB, Canada, 25 June 1981. Also, "Vital Signs" and "Limelight" from the ESL show were later released after they were dropped from the live album, but I don't think they've been re-released since the 80s.
Between these other MP-tour tracks and the ESL live video, they definitely have an MP Tour soundboard tucked away somewhere, and I would love to get my hands on a whole show!
Other tours that are missing complete soundboards are the GUP and POW shows. My version of the GUP tour is the most cobbled-together show, taking bits from the GUP Tour CD that came out in 2006, as well as a couple of soundboards and one audience show (for "Afterimage"). It's a bit of a mess, honestly, though my POW show is the mostly complete Philadelphia show, with the end of the concert filled in from an audience recording.
From the HYF tour onward, there are very near-complete soundboards for every tour, and of course, from the TFE tour onward, we've gotten official live releases.
Here's hoping that Permanent Waves Anniversary Deluxe Set contains a COMPLETE PEW Tour show, and not just another rehash of something that's circulated (FOR FREE) for years (looking at you, Pinkpop Festival).
-Marc.