Personally I have a short list of gripes I'd like dealt with...
1. Arrows and bullets... need update. I'm firing a cannon that is almost as tall as I am with a 50 Cal barrel. A little bullet wizzes out of it with the same oomf that my little level 2 boomstick did. I want cannonballs. I want burning arrows or lighning arrows firing off with a *woosh* of fire or the *crashboom" of thunder. For the crossbows that look like arbalests, firing the same arrow as the level 2 bow... not impressive. And with BoP unlimited ammo "items", why not have some flying "star" type ammo like the night elf arbalests do? how about sawblade ammo? How about poledart ammo?
2. Quivers/Ammo Pouches! These should be mapped to the equipped "ammo item" and show on the char when ranged weapons are used. If "Star-tosser arrows of light" drops off of Deathwing and it turns your arrows into brilliant tiny stars hurling towards your opponent, I want a wicked mean quiver to hold said arrows and it better be glowy

3. Maybe I played too much DAOC... but the idea of a "hunter" wearing a hooded cape just works for me. Make it matched to the cloaks but without the crazy designs (just use one of the pre-dominant colors of the cape) and make it part of the "show helm" options.
What addition to your hunter asthetically would perfect your look? Add any customization, hairstyle, bodytype, whatever... nothing is insignificant when it completes your hunter the way you would have him/her truly be!