How about a ball-jointed neck/head? That's starting to become pretty standard for action figures these days. Almost every Star Wars
figure in the past few years has had a ball-jointed neck, although for some sort of design-related reason the new, upcoming Jocasta Nu figure has an old school swivel head and neck joint. Hasbro's reps at Celebration mentioned something about not being able to give her a ball joint for some reason or another.