I was planning to post this suggestion before but seeing usalia's thread kind of pushed me to do it. >w>
As the title says, I would like to see that all races have 6 faces.
Currently, only Male, Midlander Hyurs have 6 faces, Female Midlanders have 5, and everyone else has 4.
Here is what I suggestion:
1. All races (other then Midlander Hyurs) get new faces so they all have 6.
2. Give all non-Hyurian races two unique faces for their tribes.
For example, Male Keepers of the Moon and Seekers of the Sun Miqo'te would have the four shared faces they already have now but two faces that are unique to their tribe.
Why would I suggest this?
To help differentiate the tribes.
As it stands now, only the Hyurian tribes (Midlanders and Highlanders) are truly visibly different from each other, having different faces, bodies, hairstyles, voices, emotes, etc versus the other races' tribes, who only have very small visual differences like one having flesh toned skin vs one having cooler/bluer toned skin or one having round pupils vs one having slit pupils.
This wouldn't create as huge amount of contrast like Midlander and Highlander for the other races' tribes but it would be a good start.
3. For AuRa, if you can't/don't-want-to create new horns, let each tribe re-use two horns each. So Raen would re-use two horns and Xaela would re-use the other two horns.
4. For Highlanders, I suggest the opposite, give them 2 Midlander faces.
Why? Well for one, like I said before they are already vastly different to Midlanders compared to the other races' tribes, this way all Hyurs wouldn't have six unique faces.
Second, several times in the game we see Highlander youths with Midlander models and Highlanders really don't have many "Youthful" options for players to choose.
(unrelated but maybe give Male Highlanders an eyebrow option too)
5. For Female Midlanders, you can either give them a new unique face or give them one of the Female Highlander faces.