2012 Olympics Livery on the Underground
 

The webmaster of the IDSME website has a picture of a 1996 Tube Stock
train at Stratford Market wearing a 2012 Olympics livery of red,
green, yellow and blue vinyls to advertise the London 2012 bid.

He also stated that there are rumours that a single train on each
Underground line will get similar treatment. Does anyone know if these
rumours are true, or if the 1996TS is a one-off?