We will inevitably augment ourselves. Let's face it, the current human form though it's remarkably complicated is hugely limited by it's own implementation. We are a fragile chain of complicated chemical reactions that has lead to a huge network of neurological connections and interactions. And we are born with a fuse that will eventually burn out. So if the product of our physicality (consciousness) is to persist and evolve to something even more complicated, then we'd have to enhance ourselves and ultimately give up some aspect of ourselves. I personally thinks that something else will evolve out from the human race.