It has been a while since civ 7 dropped to mixed reviews.
And though i have already put in some hours into this game i dont feel like always playing it as i did with civ 5.
Few of the reasons for that are the lack of freedom i have in placing buildings or switching focus tiles in my cities together with the lack of workers.
So my proposal is, not to destroy everything that has been built, but to introduce a new mode in which players can choose freely where their structures are placed (like civ 6), workers will work (like civ 5) and populations can be assigned to different parts of the city at will (excluding towns).
With the goal being to see if some of the older mechanics of the civ series might be able to cast a spell upon people and freshen their playthoughs again.
From there you can always adjust what works and what does not work, with in game feedback surveys.