It doesn't have to be all or nothing though. A lot of companies that weren't willing to even consider the option are embracing or at least begrudgingly allowing WFH during the pandemic, even if that leads to only a 5 or 10% increase in WFH over the long term it's a net gain.
I think it might actually lead to losses. As in, companies that would have considered building in remote work capabilities in another timeline will now be discouraged to by employees who think coronavirus when hey think work from home, leading to slower adoption overall