Hmmm.... Maybe what triggers Red Hulk in this idea could be his daughter is killed and he goes wwH. Maybe it takes all 3 hulk to stop him... Skaar, She Hulk and Smart Hulk.... But maybe Hulk or She Hulk don't make it.... If Marvel killed off Hulk then they can do Hulk movies for Skaar w no restraints by whoever owns distribution w Hulk....