Personally I can't wait to get back into the office; not that I expect to be doing a full week there, as the successful operation of the business over the last year has accelerated the company's plan to divest themselves of office space by 5 -10 years (at a guess), so I envisage working from home at least 2-3 days a week and (say it with disdain) "Hot Desking" when I'm in London. It's a bit sh1t, but from a business point of view It's unarguably the way to go.The only downside I have to working from home is, erm. Nope. Nothing.
Actually not strictly true, visiting client sites and training in person is easier. We also have a shite phone forwarding system.
I foresee the usual massive corporate enthusiasm for the new shiny process being translated into discouraging anyone coming into town at all, followed by a backlash several months later when reality bites and the realisation that some things do need hands on presence leading to a requirement for everyone to be in for 4 days a week or so, and then finally settling down into a workable arrangement dependent on specific work requirements.