The upcoming Intel Ice Lake architecture has a 10nm structure width for the first time. How much the processors perform is now shown by a leaked benchmark.
AMD is apparently planning another chipset for Ryzen 3000. The X590 chipset is supposed to place itself above X570 and probably offers more PCIe 4.0 lanes.
Ryzen 3000 in combination with the X570 chipset also supports PCIe 4.0. B550 and A520 for beginner boards can only support PCIe 3.0 and come from ASMedia.