Alleged photos of what appear to be Rocket Lake and Alder Lake processors are now doing the rounds around the interwebs. The information on the IHS is masked for obvious reasons, but we see that the Alder Lake processor is taller than current Comet Lake parts possibly to accommodate the additional 500 pins.
https://www.notebookcheck.net/Intel-Rocket-Lake-and-Alder-Lake-processors-spotted-in-the-wild.502186.0.html