To expand on the point I wanted to make last night but couldn't be fucked to type.
As bad as it seems now I think by summer the numbers will drop thanks to immunisation, both vaccine and herd based. When that happens pretty much everything will go 'back to normal' in the UK at least.
I do believe there will be a medium to long terms shift in how urban spaces are used. Businesses will be trying to consolidate losses by giving up unnecessary office space, a lot of retail businesses will have died off but others will spring up, we are after all a nation of shopkeepers. As much as some people are fleeing out of urban environments the market prices will drop for things like rents and that space will attract young people.
The biggest change, without a snap election, will be in public services. Say goodbye to everything but the bare minimum from government and local authority. Anything community based will be axed. It's already happening.