A second generation Ryzen chip has leaked in the wild and it looks like it will continue the Zen architecture's success story. The new Ryzen chip is seen listed as Ryzen 7 2700X and sports the same 8C/16T configuration as the Ryzen 7 1700X but has a higher turbo clock at 4.2 GHz — 300 MHz more than what the 1700X can offer.
https://www.notebookcheck.net/Details-of-the-AMD-Ryzen-7-2700X-leak-8C-16T-at-up-to-4-2-GHz-turbo-clock.287356.0.html