Sorry, but I don´t think the Team would do this, because it´s buildin into the earth.
That´s possible, but for many players it causes lags. Isengard had it, but it was deleted by this lags and Misty Mountains will get another bulding system by this reason, if I remember me right.
So, good idea, but poorly not really posible, sorry.
Greetings CynasFan