What about:
Those random objects could be cards (like tarots), but very well hidden. Once collected devs could actually build an entire cyberpunk spinoff card game (like Gwent?)
- Use the next patch to drop some random objects throughout the city, say 3 types of objects (...rare, uncommon, common...?)
- Once a player has collected all of them, then and only then he can access specific DLCs (...rare, uncommon, common...?)
- Adjust ranks/achievements according to the "treasure hunt" % of completion
Those random objects could be cards (like tarots), but very well hidden. Once collected devs could actually build an entire cyberpunk spinoff card game (like Gwent?)