[2021] Expired Buildings

To be honest, it is not the best idea, but neither it is a terrible one. I will forward this one to our devs to consider

Also, a toggle on/off to avoid "having the city filled with red Es" like @Gargon667 mentions!  

Hmmmm.... How about the sleepy "ZZzzz's" like when the Manus are idle? Or would that be as annoying?  

Exactly, @Pauly7 , a toggle is very necessary as I shared above. We will see what the devs think on this one!