Zack Sharf Digital News Director Jason Momoa is no longer feeling too optimistic about playing Aquaman in the future. The actor is reprising his superhero role in Warner Bros.’ upcoming “Aquaman and the Lost Kingdom,” which might be Momoa’s swan song as the character on the big screen. Momoa was cast as Aquaman in the DC Universe, playing the character in “Justice League” and “Aquaman,” but the property is now being rebooted by new DC Studios bosses James Gunn and Peter Safran.