The Dark Tower series. Book one, would be enough. I could watch that, and be satisfied for a few years while production companies decide to continue or not. Whether the movies do well or not, I'll still have the books at least.
I wouldn't mind a Dark Tower game either. Someone call Rockstar, and tell them to get on it.
I would love to see a movie made from any of Michael Connelly's books that feature homicide detective Hieronymus (Harry) Bosch. Bosch is such a great character, and the books are almost uniformly both terrific stories and thoughtful character studies. The movie version of Connelly's book "The Lincoln Lawyer" is about to hit theaters in a week or so, but that one features his other primary character, Mickey Haller, whom I also like but not as much as Bosch. If a Bosch book were to be made into a movie, it might as well be the first one, "The Black Echo," and then take it from there.