I think you may have hit the nail on the head here - I guess these technically fall under the GUP tour, but feature nearly all of the Signals songs performed during the previous tour.
It would make sense that they would have done SBD recordings of these shows being as there are quite a few "iconic" photos from these gigs.
It would also satisfy our disappointment with the "Signals 40" set to get some live material from the era - as long as they don't use the night where "Countdown" wasn't played - that would be annoying in the extreme!!!
So...could there be a "Regular" Deluxe set with an RCMH gig which would be 3-CDs, and then the "Super" Deluxe set with Toronto or maybe Largo '84 so that the main GUP tour is represented as a 5-CD set??
Interesting idea, I don't think my wallet would like it though!!!!