Zen CPU release date: March 2, 2017
Vega release date: August 14, 2017
Ryzen+ release date: April 19, 2018
Zen2 ...
I hope all the AMD 7nm CPU's & GPU's are released at CES but, based on AMD's terrible history of releases I won't hold my breathe. Nowhere has AMD actually claimed anything would actually be released at CES next month. In fact, AMD has been quite vague so, until AMD makes an official statement I'm betting they'll be late as usual - I realize AMD fans don't want to hear that.
Q2/Q3 for 7nm server and latter for 7nm desktop is the repeated rumor.