There were talks early on in the development of Mission: Impossible 4 that the film would introduce a younger agent so when Cruise left the franchise, they could reboot with a new version of Ethan Hunt. It turns out that reboot might be coming sooner than we expected. As it turns out, Mission: Impossible 4 won't be called Mission: Impossible 4 at all. In fact it won't even have the words "mission" or "impossible" in the title. Paramount is currently evaluating new titles that would serve to relaunch the series, not unlike how WB made a Batman movie titled The Dark Knight.