I think it's quite clear there will be some update to older races, there's already a new male midlander preset used by NPCs in both the first and the source with scar and lip differences. So I wouldn't be surprised if there was just a general upgrade to the character creator for 6.0. Hopefully along that line there will be more hairstyle support for hrothgar and viera, if anything I could see it occur with the 5.2 series, what with the story centering around the hrothgar homeland and ivalice