Hey,
Borgified Corpse, I am with ya. I would absolutely love to see a return of Liam Neeson's Ra's al Ghul but I just doubt it will happen. I think Bruce saving him is one thing, but legitimately returning from the dead is another. It just doesn't seem to fit with Nolan's realistic world that he has established, but if he could pull it off, then awesome.
I also think that we've seen the last of Cillian Murphy's Scarecrow, even though I would not object to more of him!