Since WSRE is no longer a PBS station, a new group has emerged that could be the area's next PBS station "Emerald Coast PBS"
emeraldcoastpbs.org
It's unclear what this organization is, or what their plans are, but it may have plans to bring PBS programming back to a station (or even a virtual one) in the near future. They are soliciting pledges, primarily for former WSRE members who benefited from having access to PBS Passport programming, a standard feature for those who donate at least $5 a month to their local PBS station.
Going forward, their best option may be a brokered spot on WPAN-TV. Their entire station is brokered content, including a full-powered repeater slot for WFBD-TV, a TCT station with a fringe transmitter.
Does PBS even have any stand-alone low-power stations, or virtual affiliates that lack a broadcast signal? In WSRE's absense, there is a large part of Northwest Florida that no longer has access to PBS programming over the air.