Cool post -- but -- I do think there is an upgrade coming. It may take another few 100,000 years, but it's coming.
Eric, I think you should re-consider. With genetic engineering, and then nanotechnology humanity will never be the same. We are already transitioning into Humanity 1.2 or perhaps 1.3 with all the prosthetics, memory drugs, lasix surgery, etc.
You should check out these sites:
Loved Bill's talk by the way.