I think this would be a more realistic iteration (though photoshopped):
From that, it's clear that this will be an Accord Coupe competitor, but with only I4 power, I'm wondering if it will truly cater to the crowd.
Given that the Mazda6 platform is shared with the CX-5 (i.e. there's space for the rear drive shaft), I wouldn't think that a RWD or an AWD Mazda6 would be difficult to build...
I only say never because I don't listen to Bieber or his instructions.