There is no conversion tool or import ability if that is what you are asking. If you want a specific engine or livery, post what you are looking for and someone might be able to point you in the right direction if it exists in the TS20xx/Railworks world.
I might be wrong but I wouldn't rule that out completely. If you can import an .ace file into Blender you can export it using BRIAGE plugin to .igs which can then be converted to GeoPcDx. Of course many adjustments would be needed (correct naming of the wheel and bogie child objects)
