I've noticed some routes - Bakerloo, LGV Med, Southeastern, have inactive tracks, i.e. track you can see but which doesn't appear in the map, so presumably isn't active in the track database. With the change to rush hour and more AI services, is there any chance of this track being reactivated? Even though we don't have the stock now for e.g. services on the WCML, it may be the case that a route comes out in the future, and it would be so cool to have trains whizzing past South Kenton etc on the main lines. Similarly you could see freight near Marseille, branching off before the LGV (many of the German freight locos are multi-voltage), and one day maybe HSTs at St Pancras.
This sounds very similar to my recent thread concerning passing mainline traffic at Norton Fitzwarren on WSR. It would be great to see these lines in use either soon or in the near future. They currently look and feel so bare.