We finally thought we could put this one to rest. But despite solid sources seeming to confirm Levitt's charter in Christopher Nolan's Batman threequel, EW state that someone on their end close to the production has debunked this..
Joseph Gordon-Levitt, long-rumored to be joining his Inception brethren in The Dark Knight Rises, will appear in director Christopher Nolan’s third Batman film. But a source close to the situation says that recent reports that Gordon-Levitt will play Alberto Falcone (a.k.a. the Holiday Killer) — the son of former mob kingpin, Carmine Falcone (Tom Wilkinson) — are incorrect. So, Batman fans: Begin the re-speculation now!
I'm not posting this one as a dead cert despite EW's reliability. At the moment it's just one source(Variety) against the other. But EW seem fairly certain that we can scratch Falcone from the list. And if that's the case, let the guessing game commence once more!