This topic sorta fits in with my suspicion that Google is going to put out a full fledged desktop OS soon. Maybe it will be an enhanced version of Chrome OS, maybe something a little different, but I think it will be similar. Google looks to be preparing for this day with things like the Pixel Book with the large SSD, and Chrome Enterprise for corporate environments.
If it happens, it might not thrill Linux enthusiasts but it should blow Windows out of the water. My guess is that they would release this OS to coincide with Windows 7 end-of-life, or maybe a little sooner.