I would really love to have curves for NS-10s, Auratones and Avantones. I think I understand your concerns about legal issues and partnership opportunities. While you are getting these worked out, how about this:
Give us curves for popular reference speakers in some common listening environments for use with headphones. E.g.: NS-10s in a bright, medium sized living room; Avantones in a well-treated, acoustically smooth studio. So you are not “copying” the speakers and are not reducing manufacturers’ sales, since this would only be used with headphone profiles.
Could this work?