Microsoft's September 22 event is expected to be packed with new Surface hardware, from the Surface Book 4, to the Surface Duo 2 and the Surface Go 3. Reportedly, a new Surface Pro X and a Surface Pro 8 are arriving, too.
https://www.notebookcheck.net/Microsoft-tipped-to-unveil-five-Surface-products-on-September-22-with-high-refresh-rate-displays-and-Thunderbolt-ports-inbound.561018.0.html