It has been a long time since Nougat was available for some Samsung mobile phones. As long as I have read they have not made it confirm about the release for other Samsung mobile phones. Is there any?
Welcome to the forums. I have always looked at it this way: If the device isn't a Galaxy S series or a Galaxy Note, it probably won't get the newest update.
Also - the older Galaxy S series phones may not get it, it depends on which one you have. Even worse, Samsung releases the OS to the carrier (in the case of the US anyway) and the CARRIER decides when to release it, after they have tested it and added their own apps.