Looks like the PS Vita version of Ultimate Marvel vs. Capcom 3 (UMvC3) is getting an exclusive. That's because Capcom community manager, Seth Killian, replied to a member at the Capcom-Unity forums who asked whether or not replay mode would grace consoles as DLC.
See his response below:
"The team was asked to create some special features to add to the Vita version of UMVC3. Since the replay was something we had discussed enthusiastically before, they decided to complete it for the Vita version. I understand the desire to have this on console UMVC3 (which was why it was something we had been pushing for), but there are no plans I know of right now to add this feature outside of the Vita."While this is not a definitive "no" answer, it's a little discouraging to know that Xbox 360 and PS3 gamers may not receive a replay mode.