Saw that Capcom's VP wrote up a reply about what it takes to have a game remade or have a sequel put out. Here's part of what he had to say:
We consider a lot of elements in such a decision.
"How did the last outting sell... and how long ago was it (has it had sufficient rest)"
"Are we continually getting requests/fanmail" is a major one.
"Are we seeing threads on boards around the net concerning the property's history?" is another.
"If it were to come back, what's an appropriate platform/delivery mechanism (is digital appropriate?)"
Read the whole reply by clicking the link above.