How likely is another pandemic becoming global like covid or the virus from wuhan china?

Extremely likely. Guaranteed, even. With pandemics, it's not a question of "if" but a question of "when?" It used to be a once in a century occurrence, but with rising temperatures and rising sea levels, I expect people will need to migrate further away from the equator and away from the coastlines. We'll pack densely together and create the perfect breeding grounds for disease. Probably not a problem for you or I, though. But for anyone in their 20s with kids, they'll probably have to deal with that eventually. And certainly their kids.