From someone using a 4770k and having 0 regrets, overclock it, and rock on, it doesn't bottleneck with anything nor will bottleneck the new 3xxx cards or whatever amd comes up with, you're set for at least good 3 more years, unless you're a FPS psycho and wants crank whatever you can above 60 fps, wich wont even be your min FPS if you have a beefy GPU.
you're set, wait for what the 4000 x 10gen battle unfolds and wait even further because out of that brawl even cooler stuff MUST appear by 2021, 2022 even, when competition is going nuts like it is right now with intel and amd, we profit.
right now the mainstream pick would be the ryzen 3600 to 3700x max, above that is unnecessary and wasteful, wich is frankly not much far away from your 7700, overclock is your right answer, go have fun.