Lockheed says increasing production beyond the 156-a-year level would require a business case based on an influx of new orders from new or existing customers.
Officials hope investments such as Radar 2 may encourage Eurofighter Typhoon export customers such as Saudi Arabia to sign on the dotted line for more fighters.
Airbus has begun work on a next-generation aircraft to enter service in 2035, opting for a novel architecture that may enable use of open-rotor engines.
Lockheed Martin and GlobalFoundaries say the partnership supports "increasing traceability, provenance and onshore production of critical semiconductor" tech.