What about reverse betrayaltons?
What i figure is some titles that went mutli platform this gen gone back exclusive or new IPs .
Truth is i really don't see the really big IP going exclusive even timed unless it's DLC .
For eg if lets say COD goes timed exclusive on 720 for 4 months that give EA a chance to make a really big BF fan base on PS4.
Then again i could be wrong and serious money hatting \ marketing \ help make the game deals going on .