They will not rest until humanity has become as depicted in WALL-E: the ultimate brainless consumers. Unable to concentrate or focus or form an original thought. WALL-E might be the most prescient sci-fi movie ever made.
Substitute hover chairs for automobiles and we're already living in it. As a walker and cyclist in your average midsize US city, I often feel like the scene where WALL-E is pursuing EVE through the spaceship narrowly escaping collision.