I don't know what the future holds, but I do know that Junior devs are cheaper than senior ones. I could envision many junior devs coding (with the help of AI) and a few senior devs doing mostly code reviews.

I don't use AI, but I know an IT manager that uses it with code snippets and prompts like: "explain what this code does". He says it works great.

That seems to play into the kind of tools that would help junior devs become senior devs. But again, I really don't know. AI may fade away like pet rocks...