The news is almost confirmed: Robin Batman v Superman: Dawn of Justice will be a woman. The next film about the Black Knight seems to be largely based on the comics The Dark Knight Returns by Frank Miller, and remains to be seen who will play the sidekick.
As for the performers, the secret is obviously still kept for a few days, even if the name of Jena Malone, present in The Hunger Games , was suggested by multiple sources. Observers saw a shooting scene involving Ben Affleck in Bruce Wayne, but Lex Luthor: a battle of billionaires in perspective …
The comics of Frank Miller, published in the 1980s, had helped revive the franchise Black Knight, with a tortuous and darker scenario, as well as the appearance of Superman in Gotham City.
Batman and Robin by Frank Miller
(via Comic Book)