It's looking more and more likely that Joseph Gordon-Levitt's days of stalking around Gotham City in a cape and cowl have ended before they ever really started. By the end of "The Dark Knight Rises," Gordon-Levitt's optimistic beat cop John Blake — real name Robin, as it turns out — discovered Bruce Wayne's abandoned Batcave, leaving him the heir apparent to Batman's legacy in Gotham.
Gordon-Levitt hasn't been shy about his beliefs that the ending of "Rises" wasn't meant to be a "to be continued," but a decisive conclusion to the "Dark Knight" trilogy and its themes. Given that Christopher Nolan has also said that he won't be involved in future Batman films, it's a safe bet that further appearances of JGL in Gotham aren't in the cards, either.
But how about that "Justice League" movie that Warner Bros. is currently assembling? It's unclear at the moment how WB plans to connect their superhero team-up (rumored to hit theaters in 2015, the same year as Marvel and Joss Whedon's "Avengers" sequel) to the "Dark Knight" trilogy, if at all. But for the sake of argument, let's say Gordon-Levitt was approached to be a part of "Justice League" — would he even be interested in signing on?