I'm in the same boat, waiting on Big Navi and possible upgrade from 3900X to 5950X before joining this round ? then I can say peak-AMD achieved!
Big Navi for me as well, but I think I am gonna stick with my 3900X for now.
Zen 4 & RDNA3 though, that will be a fully new build! Probably AM5 / DDR5 / PCIe Gen5...?