December's board papers contained a suggestion TfL could get Phase 2 of the East London Line extension paid for to mitigate the effects of the Thameslink project. This month's board papers are a bit more aggressive about it:
The Thameslink Programme will result in fewer terminating platforms being available at London Bridge from the start of construction works in 2012. As a result, London Bridge will have less capacity. The current South London Line (SLL) service, which runs between London Bridge and Victoria, is very likely to be removed from London Bridge; this is most unsatisfactory and requires mitigation. ELL Phase 2b will provide a 4tph service along the SLL between Clapham Junction and Dalston Junction assisting delivery of the Thameslink Programme as a link to the Docklands (via Canada Water) and City (via Shoreditch High Street Station) is retained. A report detailing the benefits of ELL Phase 2 for the Thameslink Programme has been prepared and funding discussions have commenced with the DfT.Phase 2 is the currently unfunded branch from Surrey Quays to Clapham Junction, mostly along the South London Line. See the dotted orange line on this map.