Disclaimer: I work at Microsoft on Postgres related open source tools (Citus & PgBouncer mostly)
Microsoft is heavily investing in Postgres and its ecosystem, so I wouldn't be extremely surprised if we would do this. We're definitely building things to combine AI with Postgres[1]. Although afaik no-one is working actively on query generation using AI.
But I actually did a very basic POC of "natural language queries" in Postgres myself last year:
Postgres is dear to me. Met its founders when I was in college at Berkeley, worked heavily with it at a previous company around 2015, used it for all my own projects. I'm glad to see it getting more attention lately (seemingly).