Ady,
I'm not worried about Wampa horns, personally. Given the amount of perfection you demanded for SW:R, I have no doubts you'll either perfect or scrap the horns as you see fit. Seems to me that the majority of Empire's current problems all lie with the SE plague (color problems, Vader's shuttle, Boba's voice, Luke's joke removal, lightsaber inconsistencies) and maybe a handful of needed recomposites in the asteroid chase to remove junk mattes. The nice thing about Empire is that it was so finely crafted, Lucas can't seem to totally wreck it, no matter what kinds of bullets he fires, so you won't have to reinvent the wheel on this one like with all the other films.
nohandluke