We're about to be at a point where a large percentage of the country has T-cell immunity to Covid. I'm not taking about serum antibody immunity, which protects against getting infected (although I suspect that can be overwhelmed by viral load - and the antibodies appear to be strain-specific, as evidenced by vaccinated people getting Omicron).

So... people will still get sick, but T-cell immunity will keep their innate immune systems from getting out of hand, so a lower rate of hospitalization per infection. (no idea how that translates into case fatality rate as cases refer to hospitalizations).

Again, there could be a new strain that that T-cell immunity acquired either through infection (AKA convalescent) or vaccination will be ineffective against, but it appears to be effective across variants, as evidenced by the relative hospitalization rates (vaccinated/convalescent vs naive).

I'm cautiously optimistic for most of us - and for our hospital staff. That said, this is very bad for the immunocompromised - unless they can mount T-cell immunity in spite of not being able to do so with serum antibodies. I've seen nothing that suggests this, but I'd love to be wrong.