I am not a model railroad craftsman when it comes to building locomotives and rolling stock. My favorite brand of Rail King locomotives are no longer affordable for my train budget. So my vision of the future in O-gauge railroading is doing things such as detailing locomotives and passenger cars to look like photos of the real things, and buying used running / broken locomotives to fix and modify.
In my opinion, the demand in our hobby will increase for detail parts, decals & dry transfers, paints, and simple electronic add-ons.