Cyborg

As everybody knows, Cyborg is, basically, alien technology. And, as expected, his suit will suffer transformations throughout the entire Justice League flick. Thus, at first it will be very alien in appearance. And, as expected, it will be (almost) entirely CGI.

About this “almost” part: Ray Fisher wears a motion capture performance suit. However, for the lighting, he also wears a red light on his head (covering one of his eyes) and one on his chest.

This being said, his suit does develop throughout the movie, as the character learns what it can do. Concept art was revealed showcasing him with an energy cannon as an arm, with 2 extra arms, or with a full helmet covering his head.

It appears that he will be quite an exotic character. Which is great. Depending on how Cyborg is received by the fans, his movie might actually happen.