They aren't showing KB+M and hairworks because they're still optimizing those. They haven't sent out PC review codes for the same reason.
---------- Updated at 04:38 PM ----------
Yes, I read all of that. But higher-res textures or the sharpening filter won't bring back the graphics from 2013. The smoke effects, particles, geometry and so on - all of that has been seriously downgraded. Just watch the Rage and Steel trailer and look how the burning house looks compared to the VGX trailer.
If they're still optimizing KB+M... I'm worried.