would bart be an uneployed high school drop out and lisa be a teacher?or a career criminal and an escort?
Bart would be something wonderfully dull...like his dad... Lisa would be an award-winning musician and some sort of criminal psychologist...her brother being her prime case
Since Bart and Lisa Simpson are yellow, one of them might open up some nasty, greasy Chinese carry-out place, or maybe they will be programmers or engineers of some type - and they'll certainly drive only 45 miles per hour in the fast lane, like all the other yellow people in America.