G-BOAB
I was involved in the Aviators BA advert in June 2011 and was lucky enough to be filming at LHR with BOAB. I can certainly confirm that the interior is almost completely stripped and there are a lot of old BA magazines in there! I took a few photos which are quite depressing frankly!
Anyway, I found this thread as I too have just the google maps image of Concorde in the engine test bay. As far as I can figure out the image must be from 2009 or 2010 due to the state of T2. It seems very odd that an airframe with no engines should be in an engine test bay (that looked like a custom fit for Concorde).
Maybe temporary storage of the airframe?
The BA engineer that was in charge on the filming day said that he couldn't wait to get rid of Concorde to free up space in his hangars!!
D