There are features of the 5G network that will enable carriers to provision certain services more efficiently and cost effectively than they currently can on 4G

There are features of the 5G network that will enable carriers to provision certain services more efficiently and cost effectively than they currently can on 4G networks, regardless of whether those services (and business models) have any use the for the potential extra bandwidth available. Now whether the carriers will actually launch such services, and whether there will be take-up of them is another question.