since IOT(internet of things) is on the process of being a part of our daily life, imagine all things being automated, cabs w/out drivers, high rise buildings with a robot assistant to welcome you a smokefree ride and maybe some old school bicycles for those that support environmental care but i would not remove beggars from the future city or include flying cars as it would not be practical putting in our world's gasoline reserves unless there would be a modern way of transportation that does not depend on gas, yeah there are electrically dependent mobiles but not that efficient to make an airplane fly or a ship move in water.