But what's more important than predicting whether an ancient enemy will return? This is a perfect venue for futures analysis since ancient enemies have a lot of data about their appearance. After all, they are ancient. Granted the information used for any futures analysis would be gleaned from cave drawings rather than bar graphs, but the information is still there.
If I was a Native American mutant inventor, I would like some basic predictions about whether an ancient adversary destined to bring about a "Fall of the Mutants" was going to return in the next quarter. That just seems like helpful information.
If I were a hairy canadian mutant, it would be good to have a heads-up about whether some feral jackass who was apparently manipulating my entire life was gonna bust in and start mucking about with things again.
If I were a billionaire playboy who dresses like a rodent and one of my arch-enemies was going to return in mummified form, I would like to be able to plan for it at least a week in advance.
If Mandrakk the dark monitor is coming from the end of time to eat our universe, it's best to have prior notification.
Obviously since heroes don't seem to know about ancient enemies before they return, ancient enemy futures analysis has not been very popular in comic books. Even those who have tried (Destiny and Blindfold in the X-Men comics) have been pretty damn crappy with it. What we need are futures analysis portfolios providing information about ancient enemy resurgence in a logical and easily understood manner.
Hmmm, we need to develop some mutant vampire countermeasures posthaste.