The third-generation Threadripper processors are expected to be based on the 7nm Zen 2 architecture, similar to the upcoming Ryzen 3000 desktop series and EPYC 2 server processors.
The Ryzen 3000 series desktop processors are expected to be released at Computex (May 28). We do not know an expected launch date for the third-gen Threadrippers, this will probably be late Summer or Fall 2019.
Via: Tom's Hardware