I have just received the following response from London Overground following my complaint several weeks ago that the last southbound trains are not late enough, and will mean late night travellers are going to be forced to continue using the Southern service from LB:

"I am very sorry to hear that you do not find the train timetable ideal. Unfortunately there is no plan on running the trains any later than the current times. However we do review timetables on a regular basis and monitor customer demand. In the light of this I have forwarded your message to the specialised team for their consideration. Please rest assured that should the demand increases the necessary adjustments will be made."

They don't say how they are going to gauge demand for later ELL services. I would have thought if they had taken a look at how full the last Southern trains from LB are already it would have given them a clue!