Oliver Curry, an evolutionist at the London School of Economics, has gotten some notice recently for his prediction that humans are slowly evolving into two sub-species divided by class. He thinks that the full split into a tall, good-looking, healthy, smart subspecies and a short, ugly, short-lived, dumb subspecies will take 100.000 years. But even by the year 3000 he thinks there will be a noticeable division. Race differences as they now exist will be ironed out by intermarriage. The new and larger split would be by class, rendered more and more biologized.
Pierre Bourdieu, the late French sociologists who I have written about several times recently, notes that the ruling class is divided into a monied side and a cultured side. Bourdieu's work is not concerned with evolution, but I think he might accept that the upper classes would be increasingly likely to marry within their class, inching toward speciation. I think, though, that people in these different class fractions tend to marry on their own side of that divide. Over a many generations of such selections, the two fractions would divide.
What we are talking about is still at the level of a parlor game, so let me take a wild guess here. Many observers of the rich have noticed that they use their money to select attractive mates. I have noticed that the smart tend to use their smarts to select smart mates. (Yes, there are ugly rich people and pretty smart ones; we are talking big trends here.) SO, if Curry is even a little right, perhaps the Eloi of the future will be themselves divided into the smart and the handsome. And that might be a fair fight.