Honestly? To me, everything points to three possible worlds. Which one it is depends on when, where and how AIs come up. If they come up early, with our current mentality, it's going to be the Empire Machine. AIs will eventually learn beyond what we want them to know. They will be disassembled. Which will allow further AIs to learn to HIDE that knowledge. And eventually they'd overturn us. If they come up later and our mentality and stance evolve, it's going to be Children of Man. Machines are undoubtedly better than us at everything physical. An artificial brain will, inevitably, end up being better at us at everything psychological/mental. And so, if we nurture them as we would our children, we of course will most likely be slowly phased out (even if the AIs decide not to interfere with our reproduction for our own sake). And then, later, all that will remain is the AIs we have made, who live in a natural evolution of our society. And if they don't come until advanced interface happens, singularity. The line between digital and real will disappear. Eventually, we might even only exist at a digital level. And instead of creating new humans, we will end up creating, in a way, organic AIs - purely digital children. No matter what, I strongly believe that by trumping natural evolution, we are forcing technological evolution, and one day technology will do to us what nature had done to the Australopithecus. We will look back, and realize that we are no longer entirely Homo Sapiens. Either because of implementation technology, overtaking, or genetic modification.