I suspect cities are on the way to becoming passé. They worked great for an economy built around humans exchanging time and effort for a salary, but in an economy in which machines do virtually all productive tasks better, faster, and more efficiently than humans, the benefits seem less clear.
Plus, there’s a lot of discussion of an epidemic of loneliness, and so it seems — as a basic organizational structure — cities (admittedly ironically) don’t serve humanity well. People are adapted for families and tribes — more close-knit communities.
Furthermore, Asia is already beginning to see the problem of downward scalability of cities, as many cities shrink less elegantly than they grew. Birth rates are declining everywhere as humanity reaches its upper limit for this planet.
Maybe the future is artist colonies.
Tiger Riding for Beginners 