If everyone is vaccinated, immunity will expire at different times (and partial immunity is definitely a thing). This means the disease will be much less conta

If everyone is vaccinated, immunity will expire at different times (and partial immunity is definitely a thing). This means the disease will be much less contagious, and join the corpus of all other viruses out there that can cause serious disease, but it will be rare. For most people it will just be another variant of the common cold. The vaccine will also be included in the annual vaccine cocktail for the elderly. So they will be immune. Since elderly account for 90%+ of deaths the disease will then be much less scary with <0.01% mortality (which is higher than say, driving a car to work).