DChero
Out of Work Superhero
Warner Bros may only do a limited 48FPS release for Hobbit film #1 according to Variety.
Warner Bros plans limited release for 48 FPS Hobbit | Hobbit Movie News and Rumors | TheOneRing.net?
You wouldn't really notice the difference anyway. 48fps with interpolation (animated motion blur) versus 24fps with interpolation will look the same. They may charge more since it's double the film cost.
I was a visual effects artist in another life, so I've spent a lot of time testing these things.