Network Rail has outlined plans for up to five new rail lines.
[The lines]... would run alongside the existing West Coast line to Birmingham, Manchester and Glasgow; the East Coast line to Edinburgh via York; the Great Western to Bristol; the Midland main line to Sheffield and the Chiltern route to Birmingham.
The Independent carries a typically excellent "Big Question" feature on the plans:
Network Rail predicts that numbers of passengers will continue swelling and could reach 1.5 billion passengers over the next decade. The amount of freight carried by train is also forecast to rise sharply as transport companies look for an alternative to congested motorways. That presents the organisation with an acute dilemma: in less than 20 years the current network will be unable to cope. Routes to the north and west of London will be under particular pressure.
You can read the full article here.