A device labeled as the "Galaxy Tab Advanced2" has been spotted in a Bluetooth declaration. The model number given in the details is SM-T583, which just happens to be the same model number currently cropping up on a Samsung support page. The device has also appeared in a listing on the website for the Wi-Fi Alliance.
https://www.notebookcheck.net/Samsung-Galaxy-Tab-Advanced2-device-appears-in-Bluetooth-listing.303856.0.html