I find it hard to imagine how AI can exist without Homo Sap anytime in the forseeable future for the straightforward reason none of the equipment that runs it is self-replicating.  No energy systems that run it are self replicating either.  Said machines can't even fix themselves when they start breaking down.  So shortly after Homo Saps goes extinct, so will the AI they built go extinct. AI may accelerate the extinction of our species, but they will not succeed us as the stewards of this planet, nor will they go on to colonize the rest of the universe in our absence.

Meanwhile, AI makes the Human Condition ever more unlivable.  With luck, the machines will all breakdown before the last of us are gone.  We ARE self-replicating.

75,000 years ago Homo Sap was knocked down to just 10,000 human souls, or 1000 breeding pairs.  From that small cohort we self replicated up to 8B, more than this planet can support in a sustainable fashion.

We can rebound again, though never again to such numbers.  Hopefully if we do manage such a comeback, we won't make the same mistakes on the next go round.

RE