A plethora of Samsung devices will receive Android Oreo according to a leaked roadmap for mid-range devices. However, don't get too excited as most of the devices will get it sometime in early 2019. Screenshots from the Samsung Members app The screenshots reveal all the devices that are waiting in the line for the OTA update - 12 in total. The images are taken from the Samsung Members app. Here's the chronological order of the handsets waiting for the biscuit: December 2018 - Galaxy J7 Neo January 2019 - Galaxy Tab A (2017), Galaxy A9 Pro (2016), Galaxy C7 Pro, Galaxy C9...
Source: https://www.gsmarena.com/samsungs_midrange_smartphone_roadmap_for_oreo_is_out-news-32654.php