It doesnt look like we can have it both ways. Southern have advised that they are planning to rebuild London Bridge station so that more trains can go through to Thameslink destinations and these trains should have more carriages. This is part of the over all transport strategy to increase access into London (London Bridge and Victoria are by all accounts full to capacity). They say to achieve longer trains on the busiest routes into Victoria, it requires extending platforms and signal sections so that longer trains will fit on the track. At Battersea Park this means the platform will need to be extended across the Junction that will mean that South London Line trains will have to take a different route into the Southeastern side of the station. When that happens Southeastern will operate all trains between Peckham Rye and Victoria and Southern will no longer operate this route.

When this happens London Overground will extend the East London Line to stop at all stations to Clapham Junction in the west. London Bridge station rebuilding for the Thameslink programme will start reducing the number of platforms available and so London Bridge passengers will have to change at Peckham Rye for Clapham etc.

We are going to lose our service for sure How is this an improvement?