Samsung Canada has released a roadmap for the rollout of Android Oreo. The S8 and S8+ will receive their updates on March 19, and the Note 8 about a week later. Users of other new Samsung devices will, of course, have to wait till much later in the year.
https://www.notebookcheck.net/Samsung-finally-releases-official-roadmap-for-Oreo-release.288966.0.html