A new report has shed more light on Intel's next desktop processors, the Rocket Lake-S series. Apparently, the processors will be compatible with Z490 motherboards and will support PCIe 4.0. However, Rocket Lake-S will be built on a new 14 nm process and will only offer up to 8-core SKUs.
https://www.notebookcheck.net/Intel-Rocket-Lake-S-Up-to-8-cores-PCIe-4-0-support-and-Z490-motherboard-compatibility-for-upcoming-14-nm-processors.505710.0.html