Deadlight shook his head sadly. “They don’t want to live in Equestria, not even the ones who didn’t go nuts. Selene would want her own kingdom. We can ask Lucky, but I bet you a thousand bits she plans on waiting for terraforming to be done on another district. Somewhere so far away that nopony from Equestria could ever walk there. And that process… it’s not a fast one, Melody.” He gestured down at the machines. “You humans are in such a rush about everything. Guess when you’ve got your death constantly creeping up on you, you can’t sit around and wait for entropy to do the work. But terraforming takes its time. Ten thousand years before the other districts are livable again, easy. Maybe longer, depending on whether Harmony does them sequentially or all at once.”