I think next May is the date by which we should get the full service restored, but we might possibly get some Sunday trains before then. The current timetables run until 11 December, and nothing has been announced yet about planned changes from 12 December onwards.By the way, I understand that the lengthened (4-car) trains have started to appear on the North London Line now that the platform extensions are all finished. I think at the moment it's a matter of luck whether you get a 3-car or a 4-car train, but they will all be 4 cars before too long.
Richard Jennings ● 5815d