Introducing 'Rumors from the crazy guy on the corner': Joseph Gordon-Levitt as the Riddler in Chris Nolan's Batman 3 (AKA - Shadow of the Bat)?

I've wrestled for sometime with how to discuss news in a timely manner when so much of the relevant movie news begins as rumor. I don't like to discuss rumors as if they are factual, but I also like to discuss stuff when it allegedly breaks. So, this will be the start of a new feature: 'News from the crazy guy on the corner'. To put it simply, anything I discuss here should be considered 100% rumor, and any analysis I offer should be taken as a theoretical 'if it turns out to be true' capacity. So if I find myself discussing something like that relatively debunked 'Indiana Jones goes to the Bermuda Triangle' story from a couple of days ago (I liked Kingdom of the Crystal Skull, so I say go for it), or whether or not Joseph Gordon-Levitt is in talks to play the Riddler in Nolan's third Batman picture (makes sense, Nolan likes to poach actors from project to project), please know that I am not assuming that any of this will turn out to be correct.