I would happily get it even if the collection just fixed some easy to fix continuity errors, came in an infinity gauntlet replica, included a digital redemption code and featured 4K HDR 16:9 (IMAX like black bar free versions using the original 12K film feeds).
But how cool would it be if they filmed new marvel one shots that fix some continuity errors.
For example how amazing would it be if they filmed a one shot that shows up on iron man 1 disk as soon the movie ends where Terrance Howard does a hand off to Don Cheadle as the new military liaison for Stark and wishes him good luck.