I lovecheese, in regard to your post@10:28 today, I was in London yesterday and the city is looking much more akin to how it was prior to the lockdown.
We were visiting one of our clients which is a very large insurance organisation and they are steadily bringing all their central London office staff back. As with many companies, they have found that where staff have to closely collaborate with each other working from home is just not efficient.
Our own company experienced exactly the same situation, and we too now have all admin staff back in the office.
Some companies will retain staff working from home but they will be a very small minority I believe by the beginning of next year.
However, much will depend on how the Covid crisis pans out into the future.