I would like to see an ingame vendor that sells tokens, allowing you to change your appearance (skin color, hair, etc).
This (depending on selling price), could help keep ingame currency down. Although in previous games I have seen this option, it's a fairly cheap option.
Also, name changing tokens would be a nice option as well.
I bring these up, because peoples' interests change quite a bit, and while one day, this name may be really nice, next week, it may not be so nice anymore. However, because it is your main, you are stuck with it.
Or, more precisely, you make an alt with a tacky name (like Cheeseburgler), because, well, you were bored and didnt really care, and thought it would just be an untouched alt. However, a few months later, you find you are loving the class, but dont want to start the class over from scratch just to have a new name. Same concept for appearances as well.
Another option is appearance options. Not just modding a piece of gear you like, but actually using the skin (but benefit from your medium/heavy options).
For instance, many like the Slave Girl Social outfits, however, it is Light Armor, which is not a feasible option for Marauders and Knights (to name a few).
However, if you add, say, an appearance tab, where that window is specific to appearance gear (no benefits other than sight), that override the appearance of your actual armor, then you could wear whatever ugly piece of armor you come across, yet still maintain your desired looked from the appearance window.
More ideas to come.....