For now it's a kind of autoencoding, regenerating the same input video with minimal changes. They will refine the pipeline until the end video is indistinguishable from the original. Then, once that is perfected, they will offer famous content creators the chance to sell their "image" to other creators, so less popular underpaid creators can record videos and change their appearance to those of famous ones, making each content creator a brand to be sold. Eventually humans will get out of the pipeline and everything will be autogenerated, of course.