What kind of CPUs? High-end? Low-end? Mid-range? New processors in the 2000-series or the next series?
Considering the Ryzen 5 and 7 2000-series processors only came out less than 5 months ago, I wouldn't expect their 7nm 3000-series successors for more than half a year, probably within the first half of 2019. As for their current series, they are supposed to be launching a new low-end dual-core in the coming days, and there has been reason to believe that they might also be launching 2300X and 2500X quad-cores before long.