Ability to build WorldGen Buildings?

[Farsight]

It's great that the game is getting new buildings, but it can be annoying to be enjoying a playthrough and then have to decide whether to give up a 1000's of cycles old base to enjoy new features.

Perhaps it would be possible to add end-game Gravitas research to unlock some of their buildings (like the new story trait ones)? It could even include some of the older Gravitas stuff, like their desks and tables for cosmetic purposes.

This could require a new, limited resource type, obtained via space POIs, or through researching or even sacrificing Artifacts.

This system would let people enjoy new buildings -and- their old base, while also adding a neat end-game goal.