In less than a century, nearly everyone has left. Including the Lord Ruler, though he and some of his Inquisitors need to make frequent visits back for magical reasons. (Some of those had, apparently, gone to the Terris Dominance after finding out about Compounding in order to find and kill some Feruchemists. The Lord Ruler is no longer the only immortal mortal, but he finds the idea interesting enough that he doesn't kill the offenders for showing initiative.)

While the second Final Empire is being established, the inhabitants of Scadrial's South Pole get invited to join. The planet will be completely empty in relatively short order.