In 2012 a diversion was made to the eastern end to join to the East London line, a former London Underground line which was reconverted to main line operation as part of Phase 2 of its extension project reinstating an alignment between Rotherhithe and Peckham that had been disused since 1911, via Old Kent Road station. This created the route from to via , , , and . Completion was scheduled for May 2012 in time for the London 2012 Summer Olympic and Paralympic Games, which was not achieved as the line opened on 9 December 2012.