Firstly, I disagree, I think a lot of people structure their lives around the medium term - "I'm going to retire to X one day, but for the next few years I'm doing Y", "for now the city life is great, but I'm putting aside some cash for a house in the burbs in a few years" etc etc

But secondly, that's not really what I meant, I meant that for the next several years people's motivations and choices are likely to be impacted by the virus. This may result in a larger percentage of people moving away from cities or choosing not to move to them.

i.e. I'm not talking about an individual holding the thought in their head that "I don't want to be in a city, in the medium term, but may move back later", but a population which is less favourable to city life in the medium term, and holds a greater proportion of people who think "I don't want to live in the big smoke at all"

I may be wrong, of course, but I think we're already seeing it to a small extent.