Samsung Canada published an Oreo update notice, which fills in many more devices than were listed on the Turkish site and there are some differences in the dates (that was expected with staged rollouts).
Here are the phones scheduled for an Android 8.0 Oreo update and the planned release dates. Again, this is from Canada, so some of these have already been updated in other regions.
Later in 2018
Thanks for the tip, CHMultimedia!
Where did samsung canada publish this?
It will get 2 updates, it is the standard procedure. A5 2017 got Nougat later than A5 2016 and A8 will follow the same pattern. Now it is A5 2017's turn to get it before the newest model. So yes, A8 will get Android 9.0, that's for sure, but it will ...
nothing happen for S8+!