Depends on the degree you want to do it, I suspect we need another 15 years to disentangle the entire mess of spaghetti code that is DNA, and not just figuring out what the code says, but really figuring out how it works. If we have done this, we could modify, for example, the GRIN2B (
https://www.ncbi.nlm.nih.gov/pubmed/19838302), the PDE4B (
https://www.ncbi.nlm.nih.gov/pubmed/?term=26272049),
https://www.ncbi.nlm.nih.gov/pubmed/25225386 and the FOXP2 strains (
https://www.ncbi.nlm.nih.gov/pubmed/19838302) to help our children to have more potential. Add modifications with TP53, CDKN2A, CTNNB1, NGF, MSTN, EPOR and APOE genes, and you got the basis for a healthy, fit and smart child. I could imagine that in 30 years, genetic modifications might be common enough, the new vaccine to help your child have a better health, fitness and intelligence so that it has more autonomy.
As an advise for anyone to excited about these developments, genetic modifications alone will not make a happy, smart and healthy child. Genetic modifications change the possibilites on how genes express themselves, not make one child a super-human. Love, education and a good enviroment will be necessary to help it further. Genetic modifications can be used to support your child even more, but even a baby that was geneticaly modified will crap his pants, moan that it want stay awake longer (and with modifications of the NPSR1, BHLHE41 and ADRB1 allells it will might only need 4 hours of sleep, though luck for parents) and need to be protected from danger.
