It's quite difficult to imagine how the game will look like when these things will be added. It's an interesting brainstorming of possible implementations that you did here.
I have picked this post on behalf of the @OurPick project and it will be highlighted in the next post! 
Thank you very much. As I started to get into the land expansion I had to let my imagination roam :)
Buildings and land management seems to be also a very ambitious project. I will tackle those in a few more posts during the upcoming weeks.