His evolution from The Suicide Squad to Peacemaker season 1 and now onto season 2 makes it clear that he has a lot of layers. The question is: Will we see more DCU references in Peacemaker season 2? A new tease from both John Cena himself and another major DC star might have confirmed the reference - or potentially even cameo - that we were waiting for. What does this have to do with the picture John Cena posted? This is all speculation, but the good news is we’ll learn the truth soon enough as we're now halfway through Peacemaker season 2.