These processes are well underway. CAE has spoken about marketable reproductive materials, fitness of DNA, and so on. It is obvious that we are facing some standards that are set by the market that are framing the game. If the answer is yes, then the line is successful. The answer is, they want to buy whatever is perceived to be helpful to future offspring.
Intelligence is popular.
Embryos can be tested in very early development for a number of genetic diseases and deformities. However, more is at work than just a concern for longevity. Certain eugenic pressures come into play. In western society, a dwarf, for example, will have greater difficulty with the presentation of self in social life, and will be a financial drain on the family. Much the same could be said about a mentally retarded person.