An EEC listing for an unknown Nvidia GPU has shown up with the model number PG136C. The entry is rumored to be for the upcoming RTX 3090 Ti. The GeForce RTX 3090 Ti was previously reported to have been delayed indefinitely.
https://www.notebookcheck.net/RTX-3090-Ti-may-be-launching-soon-as-the-card-allegedly-shows-up-in-the-EEC-database.598714.0.html