I think it would be cool if on some routes like the Great Western Express there were AI trains on the route to more accurately depict how busy it is. These could be non-interactive so the user couldn't drive or board them but it would allow for a greater variety of trains and add to the overall realism.
Except they won't go back and fix the issues in the old routes after TSW 2 is released. Let's hope they have improved such things for future routees.
Matt made that clear with a great NO there will no fixes to what will be Preserved content after Aug 6
Bow I think about in TSW2 we get the Bakerloo line that has trains every 5 minutes.....................so. Damn.