the benefits for the average joe are few and in between. the negatives are hefty.
say goodbye to your jobs soon, people who dub movies. we can have the voice of the original actor say his lines in all languages... why stop there? who needs living actors in movies anyway? fake it all the way with a dead actors likeness.
not to mention that it's getting harder to tell what's real anymore..
and conveniently, if some important shithead does an oopsie, they can claim it's an elaborate fake and not a public leak of their shitty behaviour.
it's good for modding games and other low budget media, i guess