"No. Not that I know of, no. If you find out, let me know, then I'll know. That's like intensely flattering as you can imagine. I mean, it's Batman and Superman, who doesn't want to be involved in something not only of that scale but of who those characters are. That's an incredible world to be able to be in for a bit. Like who wouldn't want to do that?"
Shortly after the initial report, which revealed that the studio was searching for a "young John Hawkes type" of actor, it was also rumored that Penn Badgley and Ezra Miller are in contention for the role as well.
Although Nightwing a.k.a. Dick Grayson hasn't been officially confirmed to appear in the sequel, it's been rumored that Batman and his former sidekick haven't spoken in years, after a falling out between the two.