Quentin Mark Mysterian
Our future selves will have whatever faces we want whenever we want them.
The present's peculiar obsession with plastic surgery will continue toward even more dramatic versions in the future. For those who wish to remain young-looking, it will be possible to freeze a face at a certain stage of aging and leave it there forever. Some will choose to look 18 for the rest of their lives, some will eternally appear to be in their mid-20s, and some will prefer a lifetime of appearing to be a sophisticated 40-something.
But that's just the start. It will also grow increasingly easy to sculpt a face to look like whatever is desired. Some will simply make their appearance more conventionally attractive, while other will choose to look like someone else altogether, leading to imposter crimes that eventually cause the very famous to copyright their faces.
Further along, perhaps 200 years from now, our appearance will be fluid, ever-changing, based on fashion and whim. Faces will be made of a infinitely modifiable bio-web that can be programmed to instantly take on a new appearance. This will be built into most people's DNA, and will have been for generations, and so there will be no such thing as somebody's "real" face.