A screenshot of a Rocket Lake-S processor in CPU-Z is being circulated online, and by none other than MSI. The image confirms that the Rocket Lake-S series will support the AVX512F and SHA instruction sets, while 8-core parts will be capable of reaching 5.0 GHz with a 125 W rated TDP. Rocket Lake-S processors are scheduled for release from Q1 2021 onwards.
https://www.notebookcheck.net/MSI-publishes-Rocket-Lake-S-processor-data-8-core-SKUs-will-have-125-W-TDPs-and-be-capable-of-5-0-GHz-boost-clock-speeds.508040.0.html