I was going through it with my dealer and he noticed that under the Premium Package, there is an option for Piano Finish Black Trim. That looks to be new, but besides that I'm a little disappointed that no new colors are available. If I wasn't planning EuroDelivery, a slightly used one would probably be a better decision.
Current: '13 E92 M3 Euro Delivery
Wife's: E39 M5, E36 M3
Gone: E86 M Coupe; E30 M3