Endgaget recently had an article on transferring facial movements from a person in one video, to a different person in a different video. Unlike previous approaches, this latest development requires only a few minutes of the target person’s video, and correctly handles shadows.
Combined with other research that allows us to literally “put words in people’s mouths” by typing them and having them created in a person’s voice that never said the words. Completely synthesized and indistinguishable from the person saying it.
Transferred facial movements plus created words in that person’s voice and it will be a forensic operation to determine if the results are “genuine” or created.