I disagree, at least when it comes to working from home. Now that people have started working from home on a large scale, there's no going back. Employees are going to expect/demand to be able to work from home more frequently, or as part of their normal schedule.
They can demand all they want, but if employers don't go along it won't happen. Teleworking will probably increase naturally, but it won't be because of these current events.
It's these current events that have opened the door, and forced all of the control hungry micromanagers out there to let people work from home where possible/applicable. Those who were vehemently opposed to allowing their folks to do so would've put it off as long as possible had this not happened.
