This May 2018 article from the Verge concludes: At this point, there’s no real indication of what Google plans to do with Fuchsia. Is it an actual future operating system that the company is building from the ground up to replace Android and Chrome OS?
Nice (but small) non-technical write-up on how Flutter and Fuchsia (an in-the-works Google’ one-OS-for-all) may have significant business impact in 2019. Wikipedia offers a good summary of the state of Fuchsia here: https://en.wikipedia.org/wiki/Google_Fuchsia. They summarize the link to Flutter and Dart as: Fuchsia’s user interface and apps are written with