I think Google will do some damage to Windows next year through Surface clones and Chromebooks. Chrome OS is getting pretty competent with support rolling out for the full Play Store... and through that people have already installed the Windows version of Steam and playable games. The full desktop browser is also very empowering. Overall it's becoming directly equivalent at all the good stuff, it's even Linux under the hood and can co-install full Ubuntu. What it leaves behind allows for mindless security, no upkeep, and performance.
Apple like to think their iPad Pro is the next generation of PCs too -
http://www.macrumors.com/2016/08/01/apple-new-ipad-pro-compu...