There’s already been plenty of speculation about who might be joining the Legion of Doom in the DC Cinematic Universe. Since Lex Luthor’s tease at the end of Justice League, the partnering of DC’s villains has become the most talked about aspect of the film. Well, other than that film’s lack of success. Fans already know that Deathstroke is getting his own film, as well as a place in the Legion. Over the next couple films expect the ranks to fill out even more. The Legion of Doom has been around for over half a century, and has been significant since they antagonized The Super Friends. To see this group of evil-doers wreak some havoc in their own movie would be a nightmare come true.