This topic has been discussed a *lot* The answer is if you look at the system requirements for Windows 8, it's waaaaaayy to power hungry for the pi.
And, even if it did somehow run on the pi's specs, it wouldn't be able to access the GPU. You *might* be able to force the video to the right memory address to get video on your screen, microsoft would have to contact broadcom, spend lots of money, and develop a driver for windows to use all the GPU features (like graphics acceleration)
Edit: Nice links though! /Edit
Closing thread to avoid duplication (but if you want to check out any of the other threads discussing this, use the search feature and look for Windows 8