Since the sequel to 2000's "Gladiator" is coming 20 years after the Best Picture Oscar winner, it only makes sense that it will be set at least 20 years after Maximus (Russell Crowe) faced down Commodus (Joaquin Phoenix) in the Coliseum.
Producers Walter F. Parkes and Laurie MacDonald told HeyUGuys that the sequel is very much in the works: "It picks up the story 30 or 25 years later,” Parkes said, adding, “We’re working with Ridley [Scott]. That’s one we wouldn’t touch unless we felt in a way to do it was legitimate. We’re working with an amazing writer as well, Peter Craig."
Per Deadline's November 2018 article: "Gladiator 2" will follow the character of Lucius, the son of Lucilla (Connie Nielsen) and nephew of power-mad Commodus, who was played in the original film by Spencer Treat Clark. Lucius looked up to Maximus as a lad (and witnessed his death), so for him to follow in his hero's footsteps seems fitting.
Clark is now 31 and could easily reprise the role, although it's not clear if the producers are looking to hire someone else. Clark just reprised another role from 2000 in M. Night Shyamalan’s "Glass," the sequel to "Unbreakable."
His other recent credits include the TNT series "Animal Kingdom," "Agents of S.H.I.E.L.D," and "Chilling Adventures of Sabrina."