Locked 60fps has nothing to do with the hardware and is entirely on the shoulders of the games developers.
Every single PS4, XO and even WiiU title could be 1080p 60fps right now if the devs chose to make that their priority over all other considerations, but ultimately different titles have different priorities, and for the vast majority of console gamers better looking games, big open environments and flashy cinematic set pieces trump high frame rates, and that's no less a valid viewpoint than the 60fps or bust crowd, quite honestly.
Those extra teraflops simply aren't going to be used to set some unnecessary standard in framerates to please the minority who care about it, or even notice. More likely we'll still get mostly 30fos games that will look nicer.
Ultimately, if you want everything to be 60fps, you need to play on PC, where you can choose to make the sacrifices necessary to achieve that, because it's never going to happen with consoles, no matter how powerful their hardware gets.
