The Navy's F/A-18 Hornet Is Getting a 'Quantum Leap' Upgrade
Even as the Marine Corps has ended training on the Harrier II, it will continue to F/A-18 training with Marine Fighter Attack Squadron 323. Moreover, due to delays with the fifth-generation F-35, the USMC is now seeing one-third of its Hornet fleet upgraded so that it can remain in operation until 2030 or later.
Source: nationalinterest.org