The virus *cannot* hit us the way it did last year. It's mathematically impossible. We're not at herd immunity levels of vaccination but we're absolutely at prevent-2020 levels of vaccination.
I know your post was talking about the pandemic as the acute period we've been living in for the last 14 months, but for the benefit of examining the post-acute period...
This is entirely dependent on not believing that long-COVID, or PASC as
@Heppenheimer keeps reminding us is the official designation, is a thing. There are 33 million official cases of COVID in the US. The UK research indicates that 1 in 7 people experience continuing symptoms after the acute infection. Including 10% of young people rising to 22% of older people. So for the US that would be 4.7 million people.
If we get to 60% vaccinated, including children, that would leave 132 million people, unvaccinated 70% - 99 million . So what are the odds that there are still 33 million people left to still be infected (or re-infected, or breakthrough) the natural way? IMO, pretty good. It won't come in surges like last year. But this virus is infectious enough that everyone who isn't vaccinated will probably get sick with it over the next few years. Just like it was hard to avoid getting chicken pox as a kid. So in terms of long-COVID, there is a reasonable chance of doubling to 9.4 million people.
Even though we've greatly diminished death and hospitalization as an acute situation, the jury is still out on the chronic, long term consequences, and will be for years. If, as an example, the continued organ inflammation people are experiencing continues through their life, especially if it's silent like heart disease, and when people turn age 50, start dying in large numbers due to organ failure, that would be a significant "hit" from the virus; just not today. For comparison, 1.9 million people develop cancer every year, and there are 17 million people alive who have a cancer history (2021 CDC cancer fact book). So 9.4 million people potentially being at risk, IMO, is significant enough that we should be cognizant that this may not be over. Even if we are most definitely, entering a new phase of it. If people believe we've seen the worst of COVID, that may not be true. But all we'll be able to do at that point, is count the pre-mature deaths and earlier loss of quality of life.