Assuming our society endures, I would say many skyscrapers likely to be preserved, especially the iconic ones, because there are economic reasons to keep them o

Assuming our society endures, I would say many skyscrapers likely to be preserved, especially the iconic ones, because there are economic reasons to keep them on top of historic ones. Destroying a house to build a larger building makes sense economically, but destroying an already large building to rebuild is less interesting in terms of space gained.