All the details are on: Motoring File
But the juicy bits are:
R5x cars remain at 211hp
Countryman (Europe) cars get 218hp (It's rumoured USA Countryman's will only get 208bhp)
0-62mph - seconds (auto seconds)
Countryman - 7.0 (7.0)
Hatch - 6.5 (6.7)
Clubman - 6.8 (7.0)
Coupe - 6.4 (6.6)
Roadster - 6.5 (6.7)
Edit: Also, dealer fit JCW tuning kit's will be available for Coupe and Roadster models. Countryman will NOT get a dealer fit kit.
A.