Not sure if it's already been proposed on here, anyway, would love to see the ECML southern section on here given the route for TS1 was absolute fun to drive, and then in time have the rest of the route added on. The southern section alone makes up 75mi/120km quite a bit of different stock so this would add variety between intercity, local and freight services, even including the 313's and/or 717's for Hertford loop/Moorgate workings would be surely welcomed (adding roughly another 28 miles of route as well). Plus who could resist Kings Cross in all its' glory?