At the risk of sounding overly selfish, I'd prefer to see Moorestown stay on the TRS; whenever I'm in western Delaware County (Newtown Square/Broomall areas), the Moorestown PD signal on 500.4125 often comes in stronger than West Chester (Pa.) PD, which also uses 500.4125 as it's F-1.
That said, I think it's ultimately going to depend on how the insurance company chooses to deal with the damage caused by the fire and whether or not it's in the township's best interests from a financial standpoint to restore it's conventional system for dispatch purposes. If PD is going to use the TRS on a regular basis, then the township might keep the conventional system as a back-up, but time will tell...