Noone is going attach the 2010-2014 style front bumper onto the thing so all you're going to see are slight revisions of the current bumper.
What sells in the marketplace the most are small design changes. Make it too drastic and suddenly the front of the car doesn't look like it belongs with the rest of the car. That's why the Saleen sketch required a new hood with new lines, it lost continuity with their new front bumper design.
The RTR is nice, and although the little grille LED's are a bit much, there's no denying that the outline in your rearview mirror will be instantly recognizable at night.