In case the primary insured dies post hospitalization then the claimable health expenses would be reimbursed. If the primary insured is also eldest member in the family, then for the succeeding years after the death of primary insured the premium would be calculated on the basis of the age of next eldest member. For this to happen, the family should fill up change of request form provided by the insurer.
Please note that in case there were only two members covered under the policy then the family floater plan would be converted to an individual plan.