Personally, I'd LOVE to see a new avatar skeleton developed, like the skeleton used in DAZ 3D. For people who make poses and animations, it would be neat see more accurate representations of the pose someone is wanting to create. I was hoping I could upload a pose I made with that, with the fingers bent a certain way, and all, but given SL's current skeleton make-up, it's impossible. So, naturally, I'm stuck with the default for now