I know this has been discussed before. Been scrolling through trying to find it.
The YF-21 has obvious Queedluun design influences externally. But does it share any other design influences from the Zentradi/Meltran?
Could be they will need an expert on fold wave technology..
Although, at this point, i would think Luca is the head of a lab or special project ,and not flying so much these days.