If it happens, it will be with a new CEO and not Tom. There is a pattern in corporate America emerging where corporations make the change from remote to hybrid when executive leadership changes.
From an outside in perspective, this company's performance has been poor for an extended period of time, efficiencies expected haven't materialized in terms of improvement in productivity unit cost when using planned staffing and not on the book staffing. Perhaps most important, as attractive as remote positions are to applicants and have expand the talent pool to all geographies, the retention, tenure and development of talent that ascends thru the organization likely tells a different story.
Without question some roles can and should be remote, but the shot clock on any debate whether all roles vs. a judicious portion of roles is likely to expire and companies, especially under performing companies with struggling cultures will be forced to make a business decision around the benefits of being fully remote and whether they outweigh the challenges.
Allstate's biggest challenge isn't being remote, that needs to be clear, but not sure anyone can say it hasn't contributed and if so, to what degree. However, at this time the company is all in on remote and promoting it as difference maker, so they must believe it is a performance enhancer and that's all that matter...for now.