I asked Ray on one of his pictures of them on flickr..
Ray Parnaby Bus Stop Photos 19 minutes ago | reply
From memory, these will be going back to London United (RATP Group). They're replaced by NB4Ls and will be redeployed on other routes and release older TA class ;-D.
RE: 2014 GNE Bus Order Predictions
Ooo Friend, Bus Friend.