The primary thing they need to do to get it onto networks is make it manageable, Just starting a fresh reimage with Office 2013 and the post sp1 hotfixes integrated. If I could have managed the start screen it would have been 8 but I can't so it will be Blue - IF - it is actually manageable. Sure we use 8 on the tablets but for general consumption it is not there.
I've gotta say I've settled into Windows 8 better than I thought I would.
Once you know how to get round Modern UI it's not that dissimilar to the Win7 Start Menu other than the obvious full screen UI change.
The "Search" functions the same way if not slightly more intuitive.
Don't get me wrong though - there are a fair few aspects I don't like - The hot-corners are a PITA under RDP or a VM console session!
I still love Win 7 and use it on a variety of PCs here due to compatibility issues (IE 10 being one with UAG).