The phones are expected to get the update after it rolls out for S8, S8+
As I mentioned, US carrier T-Mobile's website has revealed Samsung's plans of updating the Galaxy J7 Prime and Galaxy Tab E 8.0 to Android 8.0 Oreo. According to the listings (1) (2), the Oreo update for these two products is in the Manufacturer Development phase, which means that Samsung is developing the update. It comes as an interesting revelation, as it is not common for Samsung to release latest Android updates for devices in its entry-level and mid-range categories.
