The Batman: 10 Characters Matt Damon Could Play For Affleck
8. (Red) Robin
Jason Todd might be "dead" in the established DC Cinematic Universe, but that doesn't mean that he has to be the only Robin - nor that Robin actually has to be the Boy Wonder he's traditionally sold as in the comics.
When The Dark Knight Rises ended, one of the most intriguing ideas for a potential continuation was of John Blake actually becoming Robin (or Batman), suggesting a grown up Boy Wonder without the acrobat origin story as a narrative focal point.
Even without leaping ahead to Nightwing, there's a compelling argument for having an extended Bat-Family that includes a Robin, all of whom Batman has forced into retirement after Todd's death and his own "retirement". Having Damon questioning that insistence by Bruce Wayne and then ultimately pulling on his old costume as Dick Grayson for a climactic Hail Mary sequence is truly great.
And maybe THEN we can start properly talking about Nightwing.