Well, well, well, what do we have here!? According to an article posted over at First Showing, The Riddler is listed as one of the names listed on a casting grid (which apparently confirms everything in the world, but I have no idea, I'm not a film guy), and guess who's listed as a possible candidate for the role?
Joseph Gordon-Levitt. That's right! The kid from 3rd Rock From The Sun, (500) Days of Summer, and the recent Christopher Nolan mind-eff, Inception!
Now, I don't know about you guys, but this is, indeed, my dream casting for this role, so I am looking forward to it! Also, look towards San Diego Comic Con this weekend for more details. And also don't forget our Batman 3 theories special episode coming later this week!