I know there have been/are rumors floating around that the next X-Men movie will be a "teen" x-men movie. Since "they" decided to kill off half of the x-men in the last stand i think it will be a very good movie if its done right, keeping the same cast and keeping one of the older charaters as a guide of sorts, wolverine perhaps. Like X-Men Evolution but differnt charaters. X-Men can be good for 10 or more years of movies between the orgin movies and X-Men team movies. As far as the origins wolverine is a good start, magneto would probably be good but at that point your guess is as good as mine who would be next. Any way that is my suggestion.