Ridley Scott told 'The Hollywood Reporter' and the French outlet 'Premiere' that he has already decided to make a third 'Gladiator' movie — and the second one has not even released yet. "There’s already an idea," he told 'THR,' adding that he is taking some inspiration from 'The Godfather Part II.'
https://people.com/ridley-scott-gladiator-iii-8716196