Don't worry, this topic starts with Covid, but isn't technically another Covid thread. It's about crowds and how prepared Orlando will be.
So, hypothetically speaking, let's say the vaccine is a success (very likely). Next thing you know, borders are reopening, travel is resuming, and there are a lot of people around the globe with cabin fever and ready for a change of scenery. Tourism starts to BOOM with a flood of the cooped-up and sick of being at home population.
Again, all hypothetical. When/if that day comes, could WDW see entire months that resemble that infamous week between Christmas and New Year's? You know, where a walk from Swiss to Tiki Room can feel like an eternity as you squish and get elbowed through the masses? But instead of a few short holiday weeks, it's months as the locked down & stuck inside seek some much needed escapism?
The natural human programming after such a stressful time indicates there will be travel like this planet has never seen before. (Can you blame anyone?)
The question is, will WDW be ready in staffing, resources, and so-on for what could be a flood of NYE's in crowd levels? Or do you think people will be too afraid to travel DUE to expecting crowds at every turn, resulting in a slower build to "Normal"?
Edit: Another point to add, that
@drizgirl mentioned: People's personal economies. Whether or not this pandemic took too big a bite out of livelihoods to rebuild slowly or rapidly will also play a big part in where tourism goes from here.