I think this one looks owkey. The back is beautiful but the front needs a little bit more work. I also believe that's not the real side-mirror as the new one might have a signal light on it.
Anyways, I have to see it in a different angel to see how sharp the front kidney-grille is. Somehow in BMWBLOG.com, they said that the front might be something like the new Z4 which is... Hmmmmmm.......
EDIT :
I hope that they don't make the GT version like the 5GT. That's not really a problem though if they make the 5-door or the Touring version.