On steamdb we can clearly notice that the developers have been working on the PC version since mid-March. Something is coming, that's for sure. Some people on forums or groups claim that Planet Coaster on PC would be getting a graphical update when Planet Coaster is released on console, have you ever heard about that?
Last question : Bo answered in another thread that the developers are currently working on the console version and not on the PC version while the activity on SteamDB proves the opposite so it would be nice to tell us if we can expect something on PC in the next weeks/month (even if it's only a QOL update) or if this activity on SteamDB doesn't mean anything.