The showrunner and DC Studios co-head premiered the second season of 'Peacemaker' alongside star John Cena in NYC.

"I've already finished the treatment for the next story in what I'll call the Superman Saga," Gunn told The Hollywood Reporter at the Peacemaker season 2 premiere. "The treatment is done – which means a very, very worked-out treatment. I'm working on that, and hopefully going into production on that not too far away from today."

After the screening, Gunn told The Hollywood Reporter what's next for him following the success of Superman. He revealed working on his upcoming project. "I’ve already finished