Hmmmmm?
Old: F-15 441 or so aircraft in inventory
Old: F-16 1200 or so aircraft in inventory.
approximate total 1641
New: F-22 total build 187 to replace F-15
New: F-35 to replace F-16 and Navy aircraft
desired 2,400 or so. Good luck with that number.
Quote from unnamed official: The Air Force has to at least get one point across, the official said: “If you can’t support us on 381, don’t make a premature decision to close the production line, because if you close the line, you’ve forestalled any other options.”
Other folks may have more up to date info.
http://www.ausairpower.net/APA-NOTAM-160209-1.html
http://www.ausairpower.net/APA-NOTAM-140409-1.html
Have a good read.