Yes.
AI has, multiple times already over multiple different era's definitions of what counts as "AI", been used to invent new things that humans have not been able to.
> Another interesting thought experiment: Could AI come up with the theories of relativity or other similar discoveries/inventions that didn’t just conform to the available knowledge but required genuine human imagination?
E.g. resolving multiple open maths problems over a few months that humans struggled with for multiple decades?
Right now AI's problem isn't that their best isn't good enough, it's that their worst isn't good enough. They can be superhuman one moment and amateurish-to-childlike in the next.