Of course, you could expect an Easter egg to one of the greatest cyberpunk movies in the history of media -- Blade Runner. You can see the metro map early in the trailer to Cyberpunk 2077. There is a number: N6MAA10816.
This is not a random number, but a reference to Roy Batty, the leader of the renegade Nexus-6 Replicant group and the main opponent of Rick Deckard. He was protrayed by Rutger Hauer and that number was the serial number of his model in the movie.