* Computex 2017 is when Zen Threadripper was announced.
* Computex 2019 is when Zen 2 Threadripper was announced.
* Computex 2020 is when Zen 2 Threadripper PRO was going to be announced. After the show was delayed, and then officially canceled, AMD did their own announcement shortly after.
So odds are it'll be Computex 2021 on June 1st. This fits in with the usual release timing, as Threadripper tends to follow EPYC by a few months. I'd expect retail channel availability for Threadripper as early as late July, as there's usually a few months between announce and channel availability.
Trust me, I've been waiting to build a 5970X as well. :)