« UPDATE: Seth Killian Misquoted in MVC3 Interview »
In another short interview by GamingUnion, Seth Killian mentions Marvel vs Capcom 3's online modes will be fairly barebones from the start. That said, just like Super Street Fighter 4, it sounds like they will end up patching in more modes based on what fans want.
Hinting at behind-the-scenes frustrations, Killian said, "There's still a lot of back-and-forth internally about it, frankly. So, at a minimum you can expect your standard online modes where you can have a friendly match or a ranked match, as well as all your offline modes."
So, what do you want to see in Marvel vs Capcom 3's online modes? Of course, flawless netcode is a given, but based on what we've seen in Super Street Fighter 4, what other additions are needed to heighten to online play experience?

EventHubs pointed out that Seth Killian was actually misquoted in this interview. If you read the entire interview on GamingUnion, you would see there is a small quote where Seth talks about DLC, but this is in relation to character add-ons and not online modes and was taken out of context.
All in all, it sounds like they are setting fans expectations at a reasonable level with a lot of fun concepts in mind which they may or may not execute in the final build.