Well this is highly disappointing, especially considering this is the last of Socket AM4, with Zen 4 coming on a new socket. Would you buy a new motherboard just to support one generation of processors, when the next will come with such massive improvements like PCIe 5, DDR5, and USB4, especially since you just spent $300+ on an X370/X470 board a year or two? I sure as heck ain't, and I have a feeling quite a number of people will feel the same.
Per https://community.amd.com/community/gaming/blog/2020/05/07/the-exciting-future-of-amd-socket-am4 And AMD's official side: