I like the direction you're going in, however I'm curious...
Do you think future cars are going to have softened body lines or do you think manufacturer's will make body lines more angular and pronounced?
I tend to believe that a good cue to base your concept off of would be the Corvette.
C5:
C6:
C7:
You can see how the body lines progressed from soft curves to hard lines. I have a feeling the Camaro will follow suit, and you'll see many more details pop up in the 6th Gen Camaro's side profile than there currently are.
For instance, I could see the door handle going away completely and something similar to the Corvettes being introduced. I think the fender arch over the front wheel may be exaggerated a little more. And I can easily see the lines from both the front and rear fender arches being projected into the door. Just some ideas...