USAF has named Luke Air Force Base, Arizona as the preferred alternative for USAF F-35 operational training. This could involve up to 6 F-35 squadrons and up to 144 aircraft.
Assuming everything works out for Luke, after USAF pilots get their initial training at Eglin AFB, Florida, they would go on to Luke AFB to get their operational training. From there they would go on to a front-line F-35 squadron.
Currently, the pilot pipeline for the F-35 is suffering delays due to safety issues with current production aircraft for use as initial pilot trainers at Eglin Air Force Base, Florida. This means the initial pilot training effort at Eglin is grounded until further notice.
Of interest, Arizona Senator McCain would naturally be interested in this Luke AFB announcement. McCain is also the lead Republican chair on the Senate Armed Services Committee (SASC).