Mark Millar has been brought in to push Fox's Marvel properties over the edge. Meaning, they are trying to reach Avengers status. Hopefully by making the Fox stuff Whedon-ish, Mark is going to turn X-Men: Days Of Future Past into big deal.
How? Well, by throwing some big elements in the film. In SFX magazine, he talks about what to look for:
"It's X-Men meets The Terminator," he continued.So we will see the Sentinels, a war-torn future, Cable maybe? and a possible clean up the X-Men films.
"You've got robots, you've got time travel, you've got superheroes - it's got everything in one film."
I'm very curious to see how this will come along