There were some leaked pictures supposedly of the 2015 in the clay shop. I'll have to see if I can find it again.
EDIT: Here's the leaked pictures I was referring to. 2015 s550 Mustang Clay Design Model Shows Fastback Shape - 2015+ S550 Mustang Forum (6th Generation Platform) - Mustang6G.com
[LEFT][SIZE=2][B][FONT=Arial Narrow][COLOR=Red]2013 V6 Base, Manual / Race Red / Roush CAI / Roush Axle Back/w square tips / Steeda tower brace.[/COLOR][/FONT][/B][/SIZE][/LEFT]