MTH did a good job redesigning the F to fit in DCS. They even managed to fit in a control station, an engineer and a fireman. The DCS system seems to be more compact than the current TMCC, Railsounds and Cruise Commander boards. The motor location must be low and centered, that likely was key to getting it all in the F.
Tom, I am fully with you, I just hope they do not lock into a physical arrangement that makes a retrofit harder than necessary.