Well, it seems they've found their man. 29 year-old Girls star Adam Driver is said to be the frontrunner and the favorite for Nightwing. This comes from two very different sources entrenched within the production.
At this time, Warner Bros. and DC Comics have no comment.
The actor stands at 6'3", and should be able to hold his own against Ben Affleck's 6'4" Batman frame. The Batman in Batman Vs. Superman is said to be old, tired and weary.
Right now, there are two other actors testing for the same role, though they have not been identified. The production is also currently searching for its female lead, with Olga Kurylenko, Elodie Yung, Gal Gadot and Jaimie Alexander all testing for a character assumed to be Wonder Woman.
One or both of these roles may be announced during the Man of Steel Live Online Fan Event happening tomorrow, Saturday November 9, at 9 am PST/ Noon EST.
Batman v Superman: Dawn of Justice comes to theaters March 25th, 2016 and stars Henry Cavill, Ben Affleck, Amy Adams, Diane Lane, Laurence Fishburne, Gal Gadot, Jesse Eisenberg, Jeremy Irons. The film is directed by Zack Snyder.