Screw shiny new features/toys. What they need to do is go back to the basics and simplify things... remember what made Windows good to begin with. You'd have thought that they'd have learned their lesson with Windows 8, but I guess not. Stop tying bloated, vulnerable services/processes into the essential functionality of the OS. Adding things like UAC and an outbound FW is just painting over rust... make the OS more secure from the inside out by limiting attack surface instead. But then again I think that ship sailed now that they're in bed with 3 letter agencies.
I would certainly love to see more powerful "small factor" desktops. I purchased a Acer Predator last month and I was thinking, why does it have to be so big? It's not sexy, know what I mean? I'm thinking about buying the Asus ROG G20AJ, just for fun, but it's not yet available over here. http://www.asus.com/us/Desktops/ROG_G20AJ/