It could also be something like the CHocobo Companion armor, and you might only be able to select appearances from items in your Armoire etc... We don't know HOW the "Vanity" Name tbd system will work, as they have been very tight-lipped.

@ Ufufu can you post a link to your claim? I don't remember any such Dev Post like that. Also 'Extra Slots' could mean anything from more items to an entire page just for display equip.

We do know they are working on Racial Mannequins we can dress to see how the armor would look on other races.