Not too long ago
Cosmic Book News posted some information from the same source below that simply said that old batcave from Batman Begins would used once again in
The Dark Knight Rises. As you can see below that same sources has added to that info and filled in some blanks. This type of information should always be taken with a grain of salt.
CBN: Now, here is some updated info:
The overall design of the cave is almost identical of the cave of Batman Begins, with it being a basic cave without cavernous drops.
The waterfall is still there.
There have been upgrades with better lighting than the basic generator powered ones put up in Batman Begins.
There is a whole new batcomputer similar to the set up in The Dark Knight.
There is a weapons area where all of Batman's equipment used in both films, plus new gadgets, can be seen.
There is also a cabinet containing both Batsuits.
The cave isn't featured much in the film, it is has about as much screen time as the previous movies.
The Dark Knight Rises hits theaters July 20th 2012 and stars Christian Bale as Bruce Wayne/Batman, Michael Caine as Alfred Pennyworth, Garly Oldman as Jim Gordon, Tom Hardy as Bane, Anne Hathaway as Selina Kyle, Joseph Gordon-Levitt as John Blake and Marion Cotillard as Miranda Tate.