This would be a tough one...most people working in 3D computer graphics aren't a jack of all trades (or if they are, the work they put out is either not fast, or not as good as a team could put out)...they typically specialize in one or two areas: modeling, rigging & kinematics, animating, lighting, textures, matte painting, special effects (particles, fluid dynamics, smoke, fire, etc..), motion capture, and the list goes on.
I suppose what we would need depends on what is wanted in the game, and what fits with SOE's ability to offer it up. If all we want is just some new T-shirts or a new color of some clothing...anyone with The Gimp could probably create that stuff and wrap it around a model. But if we want a whole slew of new animations and abilities to go with them...now your talking an entire team of animators including mo-cap people, coders, testers, etc.. yeah it can get hairy. Way more than a single animator can handle.