I'm not sure what they're planning. While all three of them are possible, less so Jill cause I'm unsure about 3 RE characters, they could have just been using the MvC2 art. I didn't see Jill and Mega, but I did see Strider.
The place BLEW UP when they showed Arthur. Everyone was super hyped. Spencer was pretty well received too, although one guy did shout "Lose the dreads!" While the more "hardcore" Spencer kinda fits the comic book vibe, I would have preferred Rearmed 2's Spencer. Quick, someone make a picture with WHERE'S YO BUSHY MUSTACHE!?
Also cool to see MODOK and Mag-[tornado fang]ing-neto in. I knew it would be on the internet by the time I got back tomorrow, as I won't make it early enough to see the official reveal, but I didn't expect a leak. And we need more Marvel heroes.