I don't really feel like pointing out the flaws in your post, but.. Almost no one plays AR or OD 10 because few people actually enjoy it. OD10 specifically makes the timing window for a 300 too narrow to usually be worth playing. Also, the max OD/AR is 10, not 11. Anyways, AR/OD 10 is only fun for a select few tier of pros and enthusiasts, and I can't see 11 being viable. Hell, most people don't even like AR/OD9. Besides that, if you see anyone playing AR10 with HR, they're almost assuredly using HD as well to make sightreading easier. HD is much more popular than HR at higher levels of difficulty as shown by pretty much every Insane's scoreboard.
I think you're getting carried away. Maybe come back in 3 years when everyone plays like Cookiezi and re-request such a thing. I dunno, I could be wrong but I don't think this is going to be added, and I think it would actually decrease the already low amount of people who HR maps that have AR/OD9. Plus this isn't really on point with the thread.