The international health emergency is over, but the pandemic isn't. It's not background level endemic -transmission remains high (even with reduced testing leading to shonkier evidence base) and in waves, and produces excess deaths. The burden of long covid isn't fully known, nor longer term repercussions of repeat infections. Not least the dysregulation of the immune system (which of course would leave the population more likely to catch other infectious diseases, or have worse illness when they do catch them)
But could we have another pandemic? Yes.
There could be a new strain of flu
Or, as we had SARS in 2003, MERS in 2012 and SARS-2 in 2019, I wouldn't be betting against MERS-2 trotting along at some point.
Or there could be something else
How countries respond will depend on the nature of the disease produced
You can't stay alive if you kill off your hosts - this doesn't apply to covid-19. It transmits before symptoms, so it doesn't actually matter from an evolutionary standpoint how sick or dead it makes the host, it's already moved on