When I first saw the 2010 redesign, I thought it was awesome. There was no "getting used to it". Putting the GT500ish fascia and the smoked tail lights on the '13/'14 only made it better. To me, 2010-2014 are the best looking mustangs since the late 60's.
From all the rumors it sounds like the new generation is going to be great in terms of performance, it's just a shame it looks like a Fusion coupe instead of a mustang. Maybe it will look better when the entire car is unveiled, but the front end does not impress.
Don"t be to sure the performance is going to impress you either