My job is not in danger, my position was made 100% remote during Covid quarantine, but I was going back to the office 2 days a week when it became safe again, just to see coworkers.
This is more or less what happened with my employer, though after I retired. We worked remotely during Covid. Then afterward, and after I retired, they reclassified jobs, so that my former coworker was made 100% remote, except she would have to come in to the office for occasional meetings and so forth.
Does the bank you work for own the building where your office is/was located? If it doesn't, that would be a big difference. My former employer owns its building. In fact, many years ago now, they added a 10-story addition to it. I don't know what they're going to do with the space.
What they might do might be affected by a pending crisis in public transportation in Philadelphia. Unless the state of Pennsylvania comes through with a lot of money, beginning in September the transit authority will begin cutting back service (buses, subway, regional commuter rail) up to 45%. Five regional rail lines alone will be discontinued (Amtrak owns the tracks, and the transit authority has to pay for using them).
This would devastate the region economically. Thousands of people will lose their jobs (including, of course, transit workers). Kids won't have a way to get to school. Thousands of people who don't have cars will find it very difficult to get around--to work, shopping, etc. Traffic and parking will become a nightmare.
My guess is that thousands of people will be able to work from home, as they did during Covid, but then that will affect a huge number of small businesses, like coffee shops and restaurants that served people who work in the city, which will probably have to close, throwing even more people out of work.

(Of course, if I begin to need to keep a car in the city, that will directly affect me, too,

)