Discoveries are constantly being made and will continue to be made for our entire lives, no doubt.
Still in 5-10 years we should see some major advances. All that really matters is that we can get a full head of hair at a reasonable price, right? It may get easier and cheaper as time goes by, but still, that will be possible soon enough that I am really not worried about ever going bald. I will have a nice thick head of hair in my 40s (hopefully thicker then it is now!), and hopefully my 30's. That is all that matters to me!