Now that we have Darkfallen customizations for Elves, I think that it's high time that Blizzard address Humans as a race.
There are currently three separate human races: Stormwind Humans, Kul Tirans, and Worgen. There is absolutely no reason that they shouldn't all be able to use any of the existing human model variants while given the option to choose which Kingdom they hail from for the racial abilities. What I mean is, if you select Kul Tirans, you should be able to choose the basic human models if you so desire, or the current Kul Tiran models. Same with the rest. (Kul Tiras NPCs also as a majority use the standard human models as well.)
This would also open access to the Kul Tiran models to be Paladin and Warlock and the Stormwind human models to be Druid and Shaman (I know Blizz stated they eventually want to open all race/class combos, but let's be real, they are not exactly quick with the additions.)
While we are at it, they should add the skinny Kul Tiran male models as playable options (And yeah, it is not balanced since there is not a female model, but again, they already exist, just let us use them!) They are fully rigged with all the animations necessary as they use the female Undead skeleton, and they already have their own set of customization options available. There is just no reason why they shouldn't be an option for players to select.
Blizzard clearly cut the development on Male Kul Tirans between the two forms since they have such a meager selection of customization options. I am also advocating that they go back and add more customization options to the base Kul Tirans as well.
This was mostly a rant, but it makes the most sense. I would personally love to have a skinny Kul Tiran character, or use the base Stormwind Human as a druid with the Kul Tiran druid forms, or have a beefy Kul Tiran as a paladin.
(Humble request that we keep the Asmongold jokes to a minimum please!)