It's a pretty good guess that regardless of the cost of the DCS license, Atlas prices will be higher than MTH prices were, for many reasons, but we will see. My other guess is that this license cost Atlas nothing upfront, but will be a royalty arrangement per piece sold. Atlas invests next to nothing and Mike Wolf and any successor companies get an income stream that wouldn't have occurred. Given market conditions, the disappearance of the MTH brand, any substantial capital investment by Atlas would seem to be an unwise strategy, at least to me.
As far as TMCC showing up in these former MTH products, I wouldn't hold my breath. They are engineered to use DCS and redesigning for TMCC is additional capital investment that may or may not see a return. Once again, we'll see, but it seems like, at least initially, the odds of seeing TMCC and PS3 both being offered are not favorable. I hope I'm wrong, since I have little interest in PS3 locos at this point. I have a few, but that's it.