I believe Dodge is doing this in preparation of releasing the new Challenger/Charger here soon; to keep the brand fresh and still relevant. I'm sure they're going to use the platform being used in the Alpha Romeo Giulia to replace the current chassis for the next Gen. This T/A package didn't cost them much to implement because the parts are already available. They've made another hole and ran conduit for the passenger side air catcher system and that's about it; primarily. There is another model that's going to be released very soon and it will probably be the AWD Hellcat. TFL cars had some guys spying the car a few months back and they think Dodge was testing two test mules in Colorado. Here's the short video:
Pay close attention to the AWD Challenger's, at the end of the video, paint scheme and reflect on what the 2017 Challenger T/A 392 Dodge is showcasing to the public right now. Speculation; maybe?
Good times.