Just found out to night, that the LV City FD / PD have been approved for a P25 system, BUT! they are not sure when the system will take affect. Will up date as needed.
It appears from this news article that the city of Leavenworth is going to join the state P-25 800 system, as the county has done. They don't quote any infrastructure changes (eg towers, repeaters etc) for the upgrade, just new subscriber units.