Since we have to give up multiplayer, at least the wish that the passengers walk through the train and look for a seat accordingly.
OP probably means more lifelike behaviour from the NPC's. I would agree they could be more lifelike in their behaviour but I don't think it's a priority
Passengers need a lot of work overall, and this is one of the tasks on that list. If weird rotations and pathing were replaced with a thorough system that took variables into account, it would be a big improvement in experience. O.o is there some development I'm not aware of?