I don't know how many people still have any of these, but I know I have two of them on two different characters that I never got around to turning into a Delta Flyer before that option went away.
What about a DO Engineering assignment that used one of those schematics as an input?
I'd love for there to be a way to get a Delta Flyer out of this, but ANYTHING would be nice. I did a lot of grind for those. I'd settle for special shuttle gear or even just a nice chunk of Engineering CXP.
If there aren't enough of them left, then I will understand if it's not worth anyone's time.
On a broader scale, I would like to see a general assignment "Study Schematics" that basically let you convert unused schematics into Engineering CXP. I have gotten a few as drops and created others by mistake and it would be nice to be able to get some use out of them if I don't plan on using them for Crafting.