I would imagine that if some real money were put into it, this would be possible in 5-10 years. The problem is lots of money doesn't go to the proper stem cell research. From my understanding they have already used stem cells and 3d technology to print ears and other soft tissue, I could imagine that it would be possible to do some rather radical things with such technology not just printing proper nonrejectable body parts but, I could imagine it would be possible to alter the structure, and even do interesting things creating a new face perhaps and grafting it on.
I am worried though, while being able to craft new parts would be great for the trans community after all, this could lead to much better feminized faces, much better bottom surgery outcomes for FTMs, and perhaps even better labiaplasty outcomes. This could also lead to a serious problem of cisgendered people basically buying all the parts they need to be "perfect".
There is already a divide between those who can afford that nose job and tummy tuck, and those who can't; could you imagine when you can buy the perfect dimples and eyes?