I vote for the F32. While I am particular to sedans, the vehicle in those spy pics is sharp looking. I think I'd like to see them add the carbon fiber roof as an option for those who don't care for the moonroof. Probably wont see it on the 428 or 435 but maybe the grand coupe, which I think would look awesome.
Current: 2010 E90 M3 - JBM PP,TP,ES,CW,Beast
Retired: 2012 F30 335i Sedan - Sport Line