I don't see Proteus carrying a film, though I suppose he could, if adapted properly. I can see new, evolved X-Men teams battling Proteus at the beginning of the next film as an introduction of sorts, but I can't see him as the main villain overall.
cyclops in the woods??? did i miss something?
^Proteus is more than match for the X-Men on his own as well, the story from the cartoon were his father rejected him because he was a mutant and he thought it would hurt his election campaign or something by having a mutant son would be a great story and make him sympathetic.
Perez Hilton as Mojo.