Companies which have offices will out-compete the rate of innovation for remote only.
Marissa Mayer, coming from Google, the first thing she did when she took the helm at Yahoo was reverse the WFH policy because execs realized it was a huge productivity loss.
By a long shot, the largest expense for large companies in employee salaries - rent, by comparison, is a drop in the bucket. What follows is that companies should be most concerned about employee and team productivity rather then office expenses.