I don't think the genetic manipulation in the near future is going to be powerful enough to create the situation you describe. If only because of the legal structure we've set up around it, but also because right now out capacities are far more limited, we know a few single genes that control for diseases or other invisible properties. The genetics of things like height, strength, and intelligence are many orders of magnitude more complex. We hardly understand how the brain even works. I realize we'll be making exponential strides, but we're still way early in that curve.