What do I make of this? Well, I think it is hard to say at the moment. Both Variety and Entertainment Weekly are fairly reliable sources, but they have both been wrong before. My gut tells me that Gordon-Levitt will be playing Alberto Falcone. It just seems to make the most sense to me. Alberto Falcone is the son of crime boss Carmine Falcone in the comic books. Carmine Falcone was played by Tom Wilkinson in "Batman Begins". Having Alberto Falcone appear would be a nice way of bringing the trilogy full circle. That being said, it is not impossible that Joseph Gordon-Levitt could be playing another character. Till Christopher Nolan officially states which character Gordon-Levitt is playing, there's no real way of knowing.
On a related note, rumors are still going around that Marion Cotillard and Juno Temple will soon be officially joining the cast. These are just rumors, but they come from fairly solid sources so there is a good chance that they are at least being seriously considered for roles. Marion Cotillard is said to be up for the role of Talia al Ghul. Taila al Ghul is the daughter of Ra's al Ghul in the comic books. Ra's al Ghul was portrayed by Liam Neeson in "Batman Begins".
Thank you for your time and for reading my blog! Till next time!