Congrats to Boeing, their design from the start was dual-use and I hope they did not bite off more than they could chew and I wish much success. Now my speculations:
1. NG could be the principal subcontractor keeping the relationship as with F-18 E/F. If yes, NG building their section(s) in the new FL facility.
2. Boeing F/A-XX could also have some NG advanced configuration features from the NG platform.
3. If no to 1. NG working with Boeing, NG probably has a very advanced program going, possibly a high performance, VLO advanced strike platform (don't go crazy ribbing me right away, here me out). With B-2 and B-21, NG could offer an FB-23-like advanced platform, NG seems to be the strike platform master now and this makes sense.
4. LM ADP, more than likely an SR-72-type program and concentrating on advanced air-breathing LO reconnaissance, again, makes sense. See how programs are now being parsed out based upon the individual corp strengths. LM ADP U-2, RQ-170, legacy SR-71, Darkstar etc. They are also probably going to sell variants of Vectis.
Also, there is China and there massive build up. These advanced programs may have been in the works for while. Again folks, don't beat me up, just trying introduce some logic hear. Remember, there are US programs going which are pretty well hidden and more than likely in advanced development and flight testing. Times are changing my friends.