We've basically already seen this with computer aided design. It's essentially the root of Moore's law.

I'm not entirely convinced AI-aided software development (via copilot or whatever) is actually going to speed up development. It makes writing code faster, but pressing the keys or implementing simple functions was never the slow or difficult part.

The problem for the last several decades has been managing complexity, and that's something AI-aided programming doesn't help with. If anything my hunch is that it makes the problem worse. The increased speed of producing code means designs become even more shortsighted, the spaghetti even more byzantine and entangled.