We don't know anything about the movie except that James Gunn is writing, directing, and producing, and that Superman will be younger than Henry Cavill. I would like to see a Brainiac movie but James Gunn is the type of guy who will choose lesser known characters so I think he will choose Parasite instead. Not only that but Parasite as the villain would feed into the title of this chapter; Gods and Monsters because Superman even though he's an alien hes heralded as a god because he looks human but Parasite was a human who now looks like a monster and so people fear him. I think the way the movie Superman: Man of Tomorrow did it was good because it had Lobo be the reason Parasite looked different and it also introduced Martian Manhunter.