Another blow to big cities (along with the riots), for example Manhattan is going to be a shell of itself if a majority of it's workforce is working for home, it will be a death knell for all the restaurants and bars that in the past thrived on happy hours and the already weaken infrastructure of the city's mass transit systems will take a direct hit as revenue will take a sharp dive, even we'll feel the hit as NJ Transit and PATHs coffers will be just a fraction of what it was pre-Covid-19.
But NYC might never be the same, shame because I love hanging there.
Manhattan will not be a shell of itself. People live there for a ton of reasons not related to being close to the office. More people are going to live there due to corporate space being converting to residential.