The way ND has been takling about this matter (at first they were gonna make it 60fps, now their speech is much more conservative) I have no doubts it will be locked 30 fps.
Personally I think 60fps delivers better gaming experience overall and 30fps delivers best sales for the game. Yet this is a type of game that doesn't suffer that much from 30fps so it will still be a great game even on 30 fps.







