I agree that it won't happen. Just like Chrysler is not going to use your excellent design on the 300C.
Your design looks both sporty AND luxurious to me. They would of course want to make sure that it is properly differentiated from its Chrysler counterpart, so that it would be no more of a duplicate than the Charger is to the 300C, or the possible Firepower would be to the Viper, or the Avenger to the 200, etc.
It's a great design. I'm just suggesting that some of the elements could work on a Dodge halo sedan, IMHO.