So long as 4K is being dangled before developers likr the proverbial carrot, and the next big thing to slap on a game box before your competitors, you can say goodbye to 60fps let alone 120.
Personal note: those tv's they have in electronics stores with a sports match playing, and showing off the tv's 200+hz "fluid motion" crap, I always find those to be jarringly weird, even though it isn't really possible they feel like they're running smoother than real life, its hard to explain.