I think Fridays at home will be fairly common.
Some people will work from home exclusively with coming in to the office for meetings, perhaps one day a week.
Some people will be giving the option to move and work significantly away from big cities.
Taxes and regulations have an impact on this.
Elon Musk, with much of his companies, are relocating to Austin. HP, except for R&D, is relocating to an outer suburb of Houston. Both are moving out of Silicon Valley. This last year is the first time in history that California lost population.
Of course, much of their meetings will be by Zoom. However, they may actually increase business travel, compared to an entire company being located in one location.