GPT-4 sure shows signs of sentience. Once fine tuning to a specific task becomes commonplace, you could conceivably finetune a LLM also to your own personality. Loaded up with specific knowledge+personality, this can then allow you to send people interactive messages.
A pseudo-intelligent construct that conveys your message, which the receiver can interrogate. And not just text. As this article shows it could well be a multi-modal talking head, to tickle the social centers of your brain and give things more (perceived) personality.
No longer spouting your requirements to the team over a boring video call; everyone gets your opinion as an interactive avatar, to query at will. I hope someone is working on this..!