AMD recently unveiled a roadmap for its EPYC line of server-grade CPUs. The Zen 3 ("Milan") and Zen 4 ("Genoa") EPYC CPUs look like they will continue to pressure Intel's enterprise business. While Milan looks more like a refinement of the current Rome EPYC CPUs, Genoa may bring support for DDR5 RAM and PCIe 5.0.
https://www.notebookcheck.net/AMD-reveals-details-on-upcoming-Zen-3-Milan-and-Zen-4-Genoa-EPYC-server-CPU-architectures.437534.0.html