Sorry it took me awhile to see this. I've been busy of late.
Anyway, there are plenty of renderings of a Charger that have been released but I've seen no official announcement of the car's production dates. Until DCX at least releases the package you're referring to I really can't speak about it (see below).
By the way, the 300, Magnum and Charger are all based on the LX chassis. You'd never know it by looking at the cars though. If DCX has already stated that the 6.1L will go in the 300 and all 3 are based on the same chassis you can make an educated guess about the future.
We're going through the final stages of production launching the 6.1L now for the 300. That's why I've been really busy. I'm getting tired of seeing my bare engine block sitting on that engine stand but at least now I get free First Class upgrades.

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BTW Ralph, I'm sorry what you've seen of the car disappoints you. However, I concentrate on making sure what's under the hood impresses you. At least take one for a test drive when it comes out, if you can find one on a lot.