I think more expressive UIs are the future but i disagree with this sort of thing being accomplished with a non deterministic tool such as AI generating UIs, you are throwing stability and consistency along with familiarity out the window.

The idea of tools being almost UI-less and composable and modular has been a "dream" since xerox parc or see for example the book "the humane interface" which happens to also ahead of its time outline reasons why such generative interfaces would be a bad idea especially at such a large scale.

AI can potentially relieve some friction with that paradigm but definitely not in that way or even that extent.