I, too, think that Omicron is the beginning of the transition back to "normal" with Covid becoming endemic. Everyone is going to be exposed to Omicron if they haven't already.
I expect that for the next year or two, boosters will be recommended as a yearly "flu shot" to give you a decent chance of being minimally affected if exposed. Omicron will continue to be the dominate strain, finding hosts in both the vaccinated and unvaccinated. The difference will be that we will have a myriad tools at our disposal to prevent serious illness and treat it when it does happen.