The E-7/P-8 line is going to be getting busy - the USAF has also selected the Wedgetail as their replacement AWACS aircraft.
US Air Force says options limited for speeding deliveries of Wedgetail (yahoo.com)
The Air Force in April chose the Boeing-made Wedgetail to be its next battle management and command and control aircraft, replacing part of its aging E-3 Airborne Warning and Control fleet. But the service said in the announcement the first rapid prototype E-7 would be delivered in fiscal 2027, following a contract award to Boeing in fiscal 2023.
Note that the E-7/P-8 is a separate line from the commercial 737s. All the commercial 737s now being built are MAX aircraft, while the E-7/P-8 are based on the NG and is segregated and under ITAR control.