It is possible, but there's still large cohorts of the population (ie under 18s) who have not had the virus and are not vaccinated, you would expect that when t

It is possible, but there's still large cohorts of the population (ie under 18s) who have not had the virus and are not vaccinated, you would expect that when they go back to large scale mixing in schools together that transmission will increase among them and case numbers will go up. And this isn't really an issue so long as the overwhelming majority of the old and vulnerable are vaccinated. But there still the potential for scary looking case numbers but not so much death numbers.