Producer: Green Lantern won’t show up until at least ‘Justice League: Part Two’

“Every beat of the movie is not yet worked out. So there’s the possibility that he may or may not be in Justice League 2,” Roven says. “For now, we felt that we were introducing enough characters that the best possible place we could put Green Lantern is some introduction in Justice League 2, or barring that, a movie after.”