What new use cases should cities explore for re-purposing extra office space?

In my area, I've seen mall owners put pressure on the town to let them get more creative.

The mall kindof has the city by the balls. Cause if the mall doesn't have tenants, it can't pay taxes.

I've seen developers doing materially more seasonal / pop-up stuff.

Examples:

• Rent the parking-lot to a circus act.
• Rent part of the mall to a real-estate developer building homes.
• One-off events for random scenarios.

The take-away is that, I think cities want the tax revenue, so they have to lighten up on zoning considerations.