if it is a FAMILY visa, they have to cancel it. Family visa is given to the employee in order to be able to sponsor his family. Once your husband is leaving Qatar and his RP is cancelled, he is obviously no longer your sponsor. So visas of all his dependants (it could be wife, kids, maid, driver - ANY dependants) have to be cancelled. He cannot be sponsor of anybody since he is our of Qatar. It is a common sense. I am not quite understand what's the nature of your fear? Is it just because you will probably (not necessary!)have to leave Qatar few days earlier than your husband? Or what is that? what are you afraid of?