Artaxerxes
Look out, he's got a gnu!
I work for a built environment org and I'd say the industry is quietly confident - the fact was, even before this, actual occupancy of most buildings during the day is 60% tops, so I think some are seeing it as 'well, occupants still want the swing space'. It'll definitely change somewhat - I don't think it'll be either a feast or a famine for commercial property quite, but we'll see.
The pandemic has/will accelerate existing trends, as an IT worker there have been a couple of jobs that went entirely remote in the last decade while others had people coming in about 80-90% of the time and wfh the rest. The pandemic just means those trends will apply to more jobs but theres always going to be some demand for bums on seats. Essentially your looking at middle managers who'd never contemplate the move having to accept it which just updates everyone a decade in advance.
You could easily come out of this situation with a regenerated local high street, working from home as the new normal, and probably a few other really good ideas, it could be done but that would require a government with imagination.