Imagine an AI helping an architect ensure theirs drawings are compliant with local code ordinances, and it can produce some of the paperwork itself.
Imagine an AI that understands the manufacturing processes well enough to guide you or give useful advice about how to manufacture or modify your parts so they become easier and cheaper to build.
Imagine and AI that can know more about an electronic or mechanical project and can get outputs from various simulation tools to advise you on your design compliance with regulation, or that would recognise weak design choices pulling from a knowledge base of part failure or other real-world constraints.
It could propel computer-aided design in ways we can't imagine today, but this integration will probably be hard and not be just text-based.