Different strokes for different folks
If you live in a shack in Gugulethu then being force to work from home is not a nice option, Even if you live in a 3 bed semi in Reading then working from your couch or bedroom is not so nice. As others have mentioned here, if you can have a dedicated workspace that you "lock up" and leave at the end of the working day then this is WFH bliss.
Companies are starting to focus on outcome based management rather than micro management, lets hope this leads to the demise of the micro manager.
Lets not forget the different cultures in the office space too. I used to work in the middle east where you manage your manager, they like nothing better to be told at 10pm at night in the office that they "are just the most inspirational person and you are so lucky to be here with them now" (rather at home with my family).. This is a cultural change which will not go away overnight.
This is a game changer for sure. No need for office space, able to write up your bottom line (for a year anyway) as your Opex is reduced.
I am lucky enough to live in Spain working for a large multi-national who have sent most of the their workforce home. We get a one off payment for office equipment as well as a monthly stipend towards additional electricity and tinterweb. We are encouraged to take time out during the day, (i'm currently watching the whole of Red Dwarf at lunchtime) to have a virtual commute in the morning and evening which we switch off - not from work - but from phones and e-mail and get proper work done. Everyone wins here without any sinister theories about whats coming. The EoQ shows how effective (or ineffective) this new normal is. (btw it is for us).
Some companies will still need a physical office and need people to work there.
The world is adapting and its not happening overnight.
Biting the hand that feeds IT
