Considering that we're entering into (already entered) artificial hearts, limbs, etc, and perhaps not in the far future brain implants, we're going into a new evolutionary level. A non biological evolution. A borg society is more likely outcome, I think.
The singularity.
Thing is, the nature of that singularity, when all our models for human nature become obsolete overnight, is that we simply cannot predict with certainty what lies beyond it. Maybe we'll eventually become like the borg, maybe not. We can't say.
And brain implants actually are real, now. A couple, from halfway across the world, had chips in their brains connected to the internet, which allowed them to essentially communicate telepathically from across the world.