From the old forum: Latest news is that TfL's preferred option to extend the Bakerloo underground line is said to be the Catford route, taking over the Hayes National Rail line southwards from the Catford Loop, thereby missing Lewisham town centre completely, but going via Peckham or Old Kent Road. So, from Elephant & Castle, either: Camberwell - Peckham Rye - Honor Oak Park - Catford. ("Peckham" route). This seems the most popular alignment when looking at TfL's plans. Interfaces with the Catford Loop and DLR at Catford, ELL at Honor Oak Park, and with ELL Phase 2 (amongst others) at Peckham Rye. Old Kent Road - Peckham - Brockley - Catford. ("Old Kent Road" route). This gives connections with Hayes, Catford Loop, DLR (extended to Catford), the ELL at Brockley (which desperately needs better connections), and the ELL Phase 2 extension at an interchange on Queen's Road (which would likely get an entrance on the Old Kent Road). From there, it's up the OKR before heading west to E&C. This bypasses Camberwell. More info at London Reconnections.