Will Cillian Murphy's Scarecrow Return in THE DARK KNIGHT RISES?

SPOILER ALERTMultiple news outlets are reporting that Cillian Murphy has been spotted on the set of The Dark Knight Rises in Los Angeles today, and in doing so answers one of the most frequently asked questions I keep on hearing regarding the new Batman film. YES it now indeed looks like Scarecrow is making a comeback and is terrorising Gotham again! The last time we saw Dr. Jonathan Crane's villainous alter ego was in an early sequence of The Dark Knight when a mob deal went wrong and he was captured by Batman and imprisoned (he had been on the run since the end of Batman Begins). But we all kind of figured he would make a comeback at some point and now we can presume he breaks out of Arkham Asylum when Bane causes a prison riot! More info when we get it on this one. I wonder if someone has managed to take some snaps of the actor on set today? P.S. - I have said from day one that I believe when the Arkham breakout occurs, a character, probably a cop will mention that The Joker has escaped. I'm not saying The Joker will appear in the film or that we will hear his voice. In fact I'm saying that definitely won't happen but I do believe they will make reference to the fact that he is no longer locked up, leaving the door well and truly open for a new re-casting under a new director if he wants to use The Clown Prince of Crime.