I would love to see game being virtualized and isolated from the default userspace with passthrough for graphics and input to mitigate latency concerns. Abandonware could become a relic of the past! Being able to play what you buy on any device you have access to would be amazing.
I won't hold my breath, though. The industry pretty loudly rejected Nvidia's attempt to let us play games on their cloud without having to buy them all again. Todd needs the ability to sell us 15 versions of Skyrim to buy another house.