Transport for NSW proposed an additional track on the T3 Bankstown Line to provide faster services for Liverpool and South Western Sydney commuters, but this plan was cancelled in lieu of the Sydenham to Bankstown Metro.

 

With the Campsie to Bankstown 3rd Track (Passing Loop), a direct Sydney Trains service from Liverpool to Central could be achieved in 37 minutes and Bankstown to Central could be a 22 minute journey.