One thing on the minds of many die hard fans regarding Marvel vs. Capcom Origins is why certain games were skipped in favor of the two selected (Marvel Super Heroes and Marvel vs. Capcom 1). Capcom Senior VP Christian Svensson took time out to respond to this issue via a forum post over at the Ask-Capcom forum at Capcom-Unity. Regarding the X-Men titles (X-Men: Children of the Atom and X-Men vs. Street Fighter) this is what he had to say.
Sorry but anything “X-Men” specific is off the table completely due to licensing reasons.
Meanwhile, for Marvel Super Heroes vs. Street Fighter (which isn’t covered by the aforementioned licensing issues).
Theoretically MSH vs. SF would be possible, but frankly speaking, in our opinion it’s a relatively weak game compared to the others. Given that we could only pick two, we picked the ones we felt were the most iconic in the series that informed what would become UMVC3.
In addition to these, Sven also added a statement regarding working with SNK for the other “Versus” series.
And sorry, we’re not in discussions with SNK for anything at this point in time. Maybe someday, but those days are probably very far away given the preponderance of projects we need to take care of at a higher priority.