In couple of years Windows 10 will get eol'd and stop receiving security updates. It'll be interesting time certainly to see what the people who are contently now using Windows 10 without MS accont or Cortana or other online craziness, will do. I'm in that boat, but I have always been dualbooting Linux so to me changing it to be primary desktop won't be that big of a pain. But I do expect to see additional influx of new Linux users from the eventual eol. Of course some users probably will continue to use Windows 10 well beyond the eol date (there probably are still even some Windows 7 users around); heck, it might take good while until major vulns are found in Windows 10 after eol as the general security level certainly has improved.