He's talking about the F/B-22. There are rumors that the YF-23 will be used in the dev, but I don't consider them likely, for several reasons.
Interestingly enough, I was trying to track down PAV-1, and have not been successful. For a long time it was parked on the pad along Taxiway E at
Edwards, but one day a transport, probably a C-5, landed and they took it away. It may have gone to WP, but I have not been able to confirm that.
They also had one of the X-35 prototypes, but that has also been moved, possibly back to LM.
PAV-2 was at the Western Museum of Flight at Hawthorne. Their web site says it was sent back to Northrup Grumman for "refurbishment", and was due to
be returned in August, but they do not say it has been returned.
Anyone here live around Jack Northrup Field or WP? I'd like to know where these AC are hiding these days.