"That rumor is totally not true. In the comic books, Ra's Al Ghul goes into a life bath of some sort and immerses himself to become immortal. So that's probably where that comes from," Neeson told Empire (via DigitalSpy). "But no-one's approached me with an offer. I'd like to if it happens."
So what does this mean? Not much. The purported Talia/Bane and/or League Of Shadows plot doesn't really need to have Ra's pop up to work; we'd guess that if Neeson returned he would've been relegated to flashback scenes anyway considering he's presumed dead in "Batman Begins."
Still lots of questions remain for "The Dark Knight Rises" such as Joseph Gordon-Levitt's role in the film and who exactly from "The Dark Knight" will return. Rutger Hauer, who played the CEO of Wayne Enterprises, recently told EW he's not expecting a call. “I think not,” Hauer said about reprising his role. “I would have heard about it.”
"The Dark Knight Rises" starts filming this summer and will land on July 20, 2012.