Ziz said:
The IMAX scenes are on the two-disc standard DVD as extras, just not integrated into the film.
That's what I mean. If people bother to integrate "deleted scenes" into standard cuts of DVD movies that are already out there (so-called "extended edits") then this seems like a natural enough thing to do. They would just be replacing existing footage of those scenes in the standard ratio to the higher image resolution ("taller") ones.