WALPOLE — It’s been the Town Hall, a courthouse, movie theater, and gym — and it’s currently the police station. Now the future of the historic building in the center of downtown is up in the air again.

One possibility: moving out the police, and moving in the Fire Department. If that doesn’t fly, the town should consider “making the building available to a private developer for commercial or retail use,” according to a proposed master plan for Walpole’s municipal properties.