I'm not quite sure I understand the benefit of AI talking heads compared to the people you are wanting to talk to? Novelty, streamers, etc. it might make sense, but a business meeting or chat with family and friends? If someone is replacing themselves with their AI avatar then why have any sort of meeting?
It feels like the least simple solution to video calling.
If the generative part moves entirely client side, then video calls could become extremely low bandwidth. You could basically stream just the audio of the conversation, and each person could still feel like they were still talking face to face through photo realistic avatars. I don’t how likely this is, but maybe it makes reliability so good that it’s a no brainer. You could probably not even look at your camera if you’re busy, but the other person will still feel like you’re looking at them the whole time.
It feels like the least simple solution to video calling.