Do we need another one, or is Tony's arc complete?
Iron Man is probably the most popular character in the cinematic universe right now, so of course people would go see a fourth film in the hero's solo franchise. But do you feel like we need one? Or would we be better off seeing a solo film with a character that hasn't gotten as much screen time? Marvel's schedule extends through the next four years, but that doesn't mean we can't start making demands!