Does not work like that,
1.8 TF and 1.6 Ghz Jaguar = UC4.
5 TF and 2.1 Ghz Jaguar = Same frame rate, nicer AA shadows etc.
ND might squeeze 60 FPS, because well they are ND......
The problem is 2.1 Ghz Zen is coming, which would boost the CPU by 2 x estimate, our best chance of 60 FPS gaming.
Most games are not CPU limited, most are GPU limited. The main reason UC4 SP was not 60fps on PS4 was not because of the CPU, it had a lot to do with the GPU.
I do get your enthusiasm for a better CPU, it definitely helps to keep framerate up where there are heavy drawcalls, we can expect to see improved lod in console games, better A.I, better physics, less stuttering and hitching in openworld games and perhaps we may get a developer who's ready to do an ashes of singularity style game on the consoles or perhaps something more interesting, like a game which can finally make FEAR's A.I look robotic and antiquated

......Surely, a vast game like NO man's Sky could definitely use some more CPU power, so could TLG with it's impressive physics and A.I.
A better CPU would make all these games run more stable, I do think they should upgrade the CPU too, but that does not mean it's an automatic 60fps from here on out, the developer equation is always something you have to be mindful of. Lets's be honest with ourselves, any type of intel i7 is good enough to run pretty much any popular AAA game well below full CPU usage, yet you still find that some of these games don't run at 60fps with a 970, 980, "380, 390" at ultra or sometimes even high, so it's never really clear cut.