London Reconnections is reporting that the re-opening of the East London line, now part of London Overground, will take place in early April *
A milestone was reached yesterday when the project was handed over — on time — from Balfour Beatty to Transport for London. From April 4th, four trains per hour will run between Dalston Junction and New Cross, and four from Dalston to New Cross Gate; from May 23rd, four trains per hour will run from Dalston to New Cross, Crystal Palace (37 minutes), and West Croydon (47 minutes), thus linking the previously distant east and southeastern segments of our fair city in a happy railroad union.
This is, naturally, all dependent on how the tests go, and there's also a chance that the May 23rd date may slip till June to coincide with the re-opening of the northern Overground branch, which closes for three months from Feb 20th.
Those fiending to know what the new route looks like could do worse than watching this driver's-eye video (speeded up for your viewing pleasure) of the line between Dalston and New Cross. We'll also be exploring these arrivistes to the transport map later in the year.
*April 2010 update: The line is now strongly rumoured to begin a limited service between Dalston Junction and New Cross Gate on April 15th.