i am a big supporter of wings, here are my ideas.
1. demon wings(obviously)
2. angel/bird wings
3. insect wings(butterfly, wasp, bees...)
4. tech wings(like personal airplane wings)
they all should come in various size options(big, small, upper back, lower back)
i also think there should be a jetpack option for those tech at's who wish it.
there could be a very low-tech looking version, where you can see all the metal pipes and the gas tank. Or, there could be very high tech jetpacks, think Jango-fett/boba fett.
also, how about those masks that cover up just the eyes, like the ones that robin(batman&robin) wears. Or a "V for Vendetta" mask(just a suggestion)
another thing thats been bugging me, is the fact that i can't change the hair, when my character has a hat. if i have a top hat, and i want long hair with it, im SOL!.
and what about having non-usable weapons that are just for decoration. a sheathed sword that can be placed on your back or your hip. Or what about a quiver for arrows that can be placed on your back. Axes, staffs, lightsaber-esque weapons. laser guns that can be part of your arm, or in a holster, or be your arm.
how about being able to choose different body types, like human or alien, or demon...etc. i would love to be able to make the alien from "alien." i have the right head, and almost the right legs, its just that the body is standing straight up. also, the fact that you can't change the look of the arms, how about long claw like, arms, or spider arms, maybe even doc-oc type arms(im just throwing random stuff out)
theres alot of stuff i would like to see happen, not that the character cusomization isn't the best i have ever seen, it is. but why not make it that much better. With someone as sexy as Jay, anything is possible.