The Air Force has begun radically revising its combat playbook for the F-22 fighter. Instead of employing the Raptor en masse, as previously planned, USAF will use it as a scarce but extremely powerful enabler, deployed selectively in those times and places when it can enhance the performance of the entire combat air force.
Plans call for F-22s, in small numbers, to work in cooperation with more numerous but aged F-15s, which are expected to serve for another 15 years. The two air superiority fighters, old and new, will share air combat duties and hew to employment tactics suitable for a mixed force.
Good read on what the plans for the Raptor are now that it appears that additional planes will not be purchased.