https://wccftech.com/amd-zen-3-microarchitecture-to-be-unveiled-at-ces-2020-ryzen-4000/

In a publication from a Taiwanese newspaper, AMD is set to unveil some details about Zen 2's successor, Zen 3, at CES 2020. AMD's Lisa Su will formally address the matter, primarily focusing on Ryzen 4000, 4th Generation Ryzen Threadripper, and EPYC Rome's successor, Milan.

Back in mid-November, we reported Zen 3 will be a complete redesign of the Zen architecture rather than the evolutionary improvements seen between Zen 1, the process shrink of Zen+, and the eventual 7nm shift and architectural update of Zen 2. AMD's Forest Norrod claims, in terms of IPC, Zen 3 will offer performance gains 'in line with what you would expect from a new architecture.'