evs said somewhere that making the cities rebuild themselves (let alone make missions for it) would be too much of a workload on their sole programmer. I don’t really get that as it is probably the biggest problem with the game, but it’s understandable.
Do you remember where they said that?
I am kinda surprise to see it as a big issue with programming, not saying it would be super simple but they are already generating cities and settlements, so it should be pretty straightforward to adapt that.
It is really a mechanic that needs some reworking.