I have some ideas of how to improve the rail system. With all the things that 1.5 gave us, command blocks, hoppers, and the like, I'm suprised the rail is abandoned. I know of a few improvements that could be made, including rebuilding the station and track entirely. I would love to be involved in this, if it is done, as I am fond of rail systems in Minecraft, and this one could be completely automated, the only thing the player doing, chosing a destination.