I doubt that Atlas will produce both TMCC and DCS locomotives. I also think that Atlas will consider the DCC capability of PS3 as their DCC offering. One version of command control can serve xx% of the market. Or they can offer
DCS
TMCC
DCC plug in
AC (let's not forget the traditional 3 rail guy)
That's 4 versions vs one. I know what I would do if it was my company.