SPOILER WARNING: The following article contains potential spoilers for Warner Bros.' plans for its DC Comics-based films.
According to an article on JoBlo, the film, which is reportedly being co-scripted by DC Entertainment Chief Creative Officer Geoff Johns and current Batman performer Ben Affleck, will take a number of cues from the comics. Specifically, "A Death in the Family" and "Under The Hood," the former of which featured the death of former Robin, Jason Todd, at the hands of the Joker; while the latter told the story of Todd's rebirth as the Red Hood.
While the script will draw on those tales for inspiration, the main plot is said to involve the Red Hood arriving in Gotham City, where he impersonates Batman in order to make his former partner look like a criminal. As his plan unfolds, he leaves clues for Batman to discover, resulting in a three-way battle between Hood, Batman and the Joker.
The first Robin, Dick Grayson, is said to be slated for an appearance in the "Batman" movie in his adult identity of Nightwing, after being referenced but not seen in "Batman v Superman."
The trailer for "Batman v Superman" included an apparent nod to Todd's time as the Dark Knight's sidekick, showing a Robin costume on display in the Batcave, its chest covered with a note from the Joker stating, "Ha ha ha -- Joke's on you, Batman." A fan theory drew from the costume's bullet-riddled appearance in the trailer and a photo of Jared Leto's shirtless and scarred Joker from "Suicide Squad" to surmise that perhaps the two are one and the same; though that has not been backed up by any officially released information.
"Batman v Superman: Dawn of Justice," featuring Affleck's first appearance as Batman, is scheduled for release on March 25, 2016. "Suicide Squad," co-starring Leto in his debut as Joker, is scheduled for release on Aug. 5, 2016.