SARS in 2002-2003 was way worse than covid-19 (the virus in itself).
But it had a much smaller impact. The only difference I see (and this is what experts say) is that back in 2003 international travel was much smaller than today, today we are pretty much a borderless world.
There could be a major breakthrough in virus research/vaccine and cure production, or we could get better at containment, maybe divide the world in regions...
But right now what appears most likely is a huge surge in nationalism.
And because of income inequality socialism that is already very high keeps going up.
YAY! National Socialism!
The NAZI are back, soon, to a theater near you, and also every public place near you. With guns.
Rip it's over.