Wouldn't it be great if codemasters had access to real time telemetry data from real F1 events and create a lobby where we could join to race with tem virtually live? Of course we would be ghosts to real life cars, we couldn't interfere with them in the game, but would be great to do qualifying or races with them.
Live would be great, but saved real data for later replay would also be fine. I think it is technically possible nowadays and don't know if formula E was already trying something similar.
It could even be a dlc or a paid service, for sure lot of F1 enthusiasts would pay for it.