Definitely not soon, there's a lot of conditions at the moment for this to be applicable (from what I gather, I'm no expert, just a HN commenter), and well before wholesale gene editing is a thing there will be the legal aspect.
I mean the precursor to gene editing is selective breeding, which on humans quickly leads to eugenics.
Don’t know why so much fear over eugenics. You either resign to waiting millions of years for evolution to do its thing, or we just take matters into our own hands at some point and evolve faster.