Looking though the 25.7.12 press release for BAA's 6 month intrim results to 30.6.12 , I see the expansion of T5 is proposed with a new satellite T5E (page 6 para. 3 or 4) to follow on after the opening of T2 Phase 2 in 2019.
http://www.baa.com/static/BAA_Airpor...ent(final).pdf
Though no mention of the expansion of T5A or a new satellite T5D; the latter would require the re-location of the northern fuel farm and the fire station. It seems that the FT were correcly briefed on BAA's T5 expansion plans when they published an article and diagrams on 17.2.12
http://im.media.ft.com/content/image...26&title=&desc