Maybe I'm a luddite, but this seems far fetched, to me. I just don't see a path for LLMs to make all kinds of changes to a codebase from non-technical people, correctly. Yes, LLMs can do amazing things, but they still don't have a mental model of what a thing is doing and make all sorts of weird decisions that are not what you want.

I believe LLMs are going to make the bar for a SaaS you would pay for, as a company, higher.