There's another path, which is to raise the pixel densities so high we don't need AA (as much) anymore, but I'm going to guess it's a) even more expensive and b) not going to fix all the problems anyway.
That's just called super sampling. Render at 4k+ and down sample to your target display. It's as expensive as it sounds.
That's just called super sampling. Render at 4k+ and down sample to your target display. It's as expensive as it sounds.