Attractiveness will always have a lot of value. I don't see that decreasing. If anything, as other tasks and responsibilities transitioned to ai and less human intellectual input required, there will be a greater emphasis placed on beauty.

Plastic surgery methods will improve, and designer babies can be selected for attractiveness. How much improvement remains to be seen. Body parts can be grown and form induced but you still have to deal with scar tissue and invasive surgery.

If we have nanobots that can make changes at a cellular level then eventually you can look like a totally different person without the scar tissue inherent in plastic surgery and degradation of artificial implants which require recurring maintenance and replacement.