I partly disagree. There will be high demand for co-working spaces because employees like to go to the office once you remove the cons (commute, sitting next to your boss, etc). Companies will gladly pay for that too. Commercial buildings will just convert to co-working spaces.

I do see a problem for the centers where there's a high concentration of commercial buildings, esp if they are not nearby residential neighborhoods. Remote works want offices close to where they live, so co-working places need to be spread out and not all concentrated in one main area.