There was a response before 7.1 was launched that explained several things they planned to address, as well as several things they explained they would not change. You can dig around in the news section of the Lodestone for it if you haven't seen it before--it describes some things they knew would take until 7.2 to address but nothing in it suggested they would be working on face models beyond that point. Most of what they said they'd address was quite subtle based on my reading, though I'm not sure if everything they listed has been addressed or not since they don't itemize these things. I know they've adjusted philtrums, some minor tweaks to lip appearances, subsurface scattering on au ra horns, the weird hair glow, how shadows are cast on faces, and some other details here and there. I don't know if they've done anything about jaw shapes, it wasn't something I paid a lot of attention to, and based on the news post it sounded like anything they did would be very subtle anyway. I don't expect that there would be another response from the devs beyond that, though anything's possible.
