If this is already in the game and I just missed it lmk, but if not... I think having an FOV setting like the one in train sim classic would be nice allowing the player to personally choose how far they wanna see in the cab. I find that some trains it just feels like you're sitting with your nose right up against the cab's desk especially on the 377 London Commute. Now it may be very close to real life on what the driver sees but when looking at where the chair is actually located it just seems like your FOV is too small so being able to personalize that to one's preference would be nice.
Could do with this as it makes driving without the HUD, particularly on Island Line (Class 483) troublesome as you cannot see the speedometer. Would also be nice because you would be able to see the controls better and not have to fiddle the camera to use the throttle/brakes on some locos, and the Calss 387 on London Commuter in the current view omits part of the speedometer if you don't look down
