https://www.techpowerup.com/269150/intel-alder-lake-s-confirmed-to-introduce-lga1700-socket-technical-docs-out-for-partners
 
Intel's Core "Alder Lake-S" desktop processor, which succeeds the 11th generation "Rocket Lake-S," is confirmed to introduce a new CPU socket, LGA1700. This new socket has been churning in the rumor mill since 2019. The LGA1700 socket is Intel's biggest mainstream desktop processor package change since LGA1156, in that the package is now physically larger, and may be cooler-incompatible with LGA115x sockets (Intel H# sockets). The enlargement in package size is seen as an attempt by Intel to give itself real-estate to build future multi-chip modules; while the increased pin-count points to the likelihood of more I/O centralization to the processor package.

The "Alder Lake-S" silicon is rumored to be Intel's first 10 nm-class mainstream desktop processor, combining a hybrid core setup of a number of "Golden Cove" high-performance CPU cores, and a number of "Gracemont" low-power cores. The processor's I/O feature-set is expected to include dual-channel DDR5 memory, PCI-Express gen 4.0, and possibly preparation for gen 5.0 on the motherboard-side. In related news, Intel put out technical documentation for the "Alder Lake-S" microarchitecture and LGA1700 socket. Access however, is restricted to Intel's industrial partners. The company also put out documentation for "Rocket Lake-S."
 
Personally I think Intel is changing sockets much too often.