The Dark Knight Rises goes on release on blu-ray and DVD stateside on December 4th and Amazon has announced that they're taking pre-orders.
They've also got a pretty nice limited edition "cowl" boxset:
The UK release date doesn't appear to have been announced yet.
- 'The Dark Knight Rises' Blu-Ray Special Features Revealed (screencrave.com)
- 'Dark Knight Trilogy' & 'Rises: Broken Cowl Edition' Blu-Ray Images Appear Online (screenrant.com)
- First Look at THE DARK KNIGHT RISES Collectible Bat Cowl Blu-ray/DVD Combo Pack, Plus Details on the Special Features (collider.com)