We had the "first wave" of languages that were marketed to decision makers (Java), the second wave that was marketed to developers (Ruby on Rails, Rust), I think a third wave is coming, where the language will be designed to be LLM friendly from the ground up.
In my mind (I am a non-academic that never really designed a new programming language), I can imagine strong typing, terseness, and no optional syntax (you can do this multiple ways) would be really cool for LLMs.
I did come across a few languages / people trying to design programming languages to be used with LLMs / AI Agents, and I think the most promising thing I found is https://www.moonbitlang.com/blog/moonbit-ai - which takes the whole idea of working with LLMs to another level, with actual features designed to work with agents (not only syntax).
But seriously though, a high-level language designed for LLMs would be interesting, maybe with a translation layer to something more developer friendly on top.
That's Lisp because nothing compresses the number of tokens you have to write more than Lisp Macros.
There may not be enough code out there for LLMs to pick it up though.