That's not a small task. You are talking about rewriting the entire work for hire legal code. There honestly is no difference between allowing another human to take over your position, or an AI. The fact that an AI is better and faster at mimicry really doesn't change anything.

The company paid you for your time while you were working there. You have no rights to work product beyond that compensation. Trying to legislate anything else would be nearly impossible at this point. It would be akin to doing away with employer/employee relationships altogether.

Arguably not a bad thing, but I don't see it happening.