I would prefer MTH maintain the offerings divided between scale and hirail, especially for steam.
Most customers cannot be bothered to swap wheels on steam.
The reason I feel this way is because the switches I use in the old Real Trax will not accommodate scale wheels without a massive "Bump down" and pressure on the opposite guard plate rail at the frog.
Course I can always replace switches for those that can do scale...
Maybe one day.
3/2 engines have a few settings on them that will need to be changed one way or the other and the middle pickups will need removing when two rail is established.
I will say that making the Pad for the kadee couplers is a step in the right direction.