the Shuma-Gorath and Jill Valentine DLC characters in Marvel vs Capcom 3: Fate of Two Worlds. Previously scheduled for March 15, the DLC's new launch date is unknown for the time being.
Shuma-Gorath and Jill Valentine have been priced at 400 MS Points ($5) each. It's unclear whether or not this delay is worldwide -- we've contacted Capcom for clarification.
Update: According to the Capcom-Unity blog, players should still expect the DLC tomorrow. We're still waiting for an official statement from Capcom, but it seems US players won't be affected.