Thanks for that, I did find some interesting info:

See that photo on the left? That’s one of the leaked set pics and if you don’t know what that green sheet is it’s used for special effects. This means that pit is going to be doing something special. Fake water? Perhaps. But Nolan is known for not liking heavy use of CGI so I doubt he’d go through all the trouble of making fake water when he can use real water. No this is probably the infamous Lazarus pits from the Batman universe. Used by supervillain and sometimes uneasy ally Ra’s al Ghul to keep himself young. Its reported that Josh Pence will be playing a young Ra’s.
Now this raises a few interesting questions about the movie plot and what will be featured in the Batman mythos of this supposedly final installment in the Nolan franchise. (Honestly after Nolan leaves the helm nobody should touch Batman for a good decade plenty of more DC heroes to focus on.) But Nolan has kept the Batman movie grounded in reality, making them more crime dramas than superhero films. So it seems a bit odd to me that he’d introduce the spiritual/sci-fi aspect of the Lazarus pits. Also with a focus on young Ra’s it seems very likely his daughter will be introduced in this next film. I don’t see any other reason for treading back to “Batman Begins” unless there is a reason. Actually this would take Batman even further back. I wonder if because of Nolan’s success with the sci-fi epic “Inception” that now he is more willing to delve into science fiction with Batman. It’s hard to say and its safe not to speculate too much. Nolan is the kind of guy I would not be surprised to see throw out a red herring or two just to throw off the nosy fanboys.
A year from today marks the arrival of the most anticipated film of the decade: Christopher Nolan’s The Dark Knight Rises. This third entry in the acclaimed Dark Knight Legend also looks to be the last for Nolan and his crew. With production well under way and the marketing machine just now revving up, we wanted to commemorate this pre-anniversary anniversary with something special. What follows is everything we know, think we know, and what’s leaving us scratching our heads. If you want to go into TDKR completely spoiler-free, you best bounce up out of this Batcave.
The Tumbler is Back:
When the Joker blew the Batmobile halfway to hell in The Dark Knight speculation arose as to what form the Bat’s wheels might take in this next installment. Well, it turns out the new ride is pretty much the same as the old one. Here’s a pic that some lucky fans snapped.
So yeah, pretty similar to what’s come before. That doesn’t necessarily mean she’s the exact same as the old Batmobile. It’s not hard to imagine there could be some tricks and treats we’ve yet to learn about this new Tumbler. Anyone remember the Batpod?
Also Rising, Wayne Manor:
At the end of Batman Begins, Bruce Wayne relays his intentions to rebuild the decimated Wayne Manor “brick by brick.” In The Dark Knight, Wayne is living in a swanky Gotham City Penthouse. What gives?
It’s highly likely that Bruce has moved back into his old / new digs by the time TDKR begins. In late June, Nolan and co. spent some time shooting in (Nottingham). This is Wollaton Park:
Forget everything you know about past, sex-infused incarnations of Selina Kyle’s alter ego. It sounds like Chris Nolan is taking a more practical approach to Anne Hathaway’s evening attire. Expect goggles as well as a look more akin to that of a “robber” This sounds very much in line with artist Darwyn Cooke’s interpretations of the character back in the early 2000s, of which that above picture is from.
Bane is League of Shadows:
It’s pretty much a forgone conclusion that the League of Shadows has returned and are again the villains terrorizing Gotham City. What’s foggier is what role Bane (played by Tom Hardy) serves in such a situation.
In the comics, Bane was the son of a South American revolutionary. When his dad flees a murder charge, young Bane is forced to serve out his father’s sentence. Bane grows up reading and training in the penn, growing into a criminal genius and formidable physical force. There’s also some malarkey about a super steroid named Venom that Bane pumps into his neck via tubing attached to his mask – but let’s all pray that Nolan doesn’t bother with that junk.
So why do we think Bane is a card-carrying member of the League? Remember how Ra’s first tracked down Bruce Wayne back in Begins? Prison. Our guess is that Bane becomes the new chosen one to destroy Gotham after that whole Bruce Wayne experiment fell through back in part one. Couple that with the fact that Josh Pence plays Ra’s al Ghul in a flashback. We’re willing to bet that Pence comes face-to-face with the young, adolescent muscle boy at some point.
Or does he? Much has been made of Gary Oldman’s conversation with an off-camera Christian Bale in. A clearly messed up Gordon states that Batman must return whilst lying on his hospital bed (and possibly on the receiving end of a colonic judging from that picture). A voice responds: “What if he doesn’t exist anymore?”
The kicker here is that it’s clearly Bruce Wayne’s voice and not Bale’s oft-maligned Batman growl.
The kicker here is that it’s clearly Bruce Wayne’s voice and not Bale’s oft-maligned Batman growl. That seems to imply that Gordon, having such direct words with Wayne, knows the true identity of The Batman. That’d be a major (and welcomed) change in the status quo, though it’s just as likely that Wayne’s face might be obscured somehow.
Perhaps if anyone else finds any interesting info/rumours they can post them in this thread, it would be nice to read about them and if people don't want to read them they don't have to.
Cheers