Anything’s possible. I don’t think anything is likely or imminent. If you’re already “highschooler”, I’d say there’s near zero chance of anything during your HS career, including Ancient.
I agree that an advanced math topic would be widely subscribed - the head of our math department has not suggestions for my D who finishes BC as a Junior. While he confirms it’s a growing trend (7 kids this year), “we’re just not equipped to handle another course”. He’s the only BC teacher and doesn’t even know what they will do when he retires in a couple of years.
I suspect many schools are in that position. Having common material from a 3rd party would solve half the problem. Finding a HS teacher with enough math background to teach would be the other.