I don't think it will be next month for zen 2. But I'd say probably in the next 6 months. It should be a nice improvement. They are shrinking from 12nm to 7nm. So should be some nice speed gains just from that. I saw some slides claiming speed boosts up to 4.8-⅝ghz depending on cpu.
But you figure as well, not just that, since this is actually now a redesign of zen, there should be improvement on the architecture itself as well.
I did see that side claiming 6 core 12 threads for 99 bucks. Even if they didn't do that and went 4 core 8 threads for 99 that would still be a deal.