According to reports, AMD plans to release a new Desktop Kit, building on the 4700S that it unveiled in July. The 4800S Desktop Kit has a microATX board and a PCIe slot supporting an AMD Radeon RX 6600 GPU. AMD will sell the device with a PowerColor graphics card in early 2022.
https://www.notebookcheck.net/AMD-4800S-Desktop-Kit-leaks-with-a-Zen-2-CPU-and-support-for-at-least-a-Radeon-RX-6600-GPU.583283.0.html