I would very much like more platforms too. I like to make to build everything as realistic as possible, so grouping two stations together with two small station building just doesn’t do the trick for me…
Perhaps, in-game stations expansion would be a nice idea. I am thinking of an upgrading tool that can be used to add a track/platform and that can upgraded station buildings to a bigger size or perhaps add a cover over either the platforms (small ones) or the entire station (a big one).