Thanks for the reply; however, I respectfully ask that you reconsider. I've noticed during multiple pushback trials that the aircraft center point, marked with a red X in your visualization, does seem to follow a curve as I imagined it would appear if you added the dashed lines. Of course, the nose gear and tug follow a much different path that depends as you say on the mechanics of the scenario but I'm not asking for that to be displayed.
Also note that the dashed lines displayed in the Snap mode simply follow the underlying AF file links, and the actual aircraft movement will vary as necessary especially with acute angles.
Finally, I'd like to thank you for adding this pushback feature. I've revised or updated parking customization for a half dozen FSDT airports so far and the Free mode comes in really handy in a couple of cases at each location.