Dear Samsung Member,
Greetings from Samsung Customer Support!
Currently, we would be unable to speculate on official or new beta update release date. We assure you that the official update would be released soon. Any news regarding official Android R release will be notified in Samsung Members app > under Notice section.
Or you can also check for updates on your device via Settings>> about device>> tap on software update.
Thank you for writing to Samsung.
Samsung Customer Support