> I suspect that Rust will start taking over as a dominant LLM output language.

I doubt it. I think most people will become more entrenched in their favored ecosystem.

> I also suspect that in short order we'll have entirely new languages that are engineered to be ideal languages for LLMs to generate.

This is already happening. A couple months ago I came across this language that is engineered for AI and human consumption https://www.moonbitlang.com/