 In January 2013, the Department for Transport (DfT) announced that trains serving the Sutton Loop Line (also known as the Wimbledon Loop) will continue to travel across London after 2018. The number of trains calling at Herne Hill on the route will remain unchanged, with four trains per hour. The DfT has also decided the Sutton / Wimbledon Loop will remain part of the Thameslink franchise until at least late 2020; as such, the route will eventually be served by the new Thameslink trains.
