Hopefully any sets that need to be stored for a long period of time will be sent somewhere down south

, Eastleigh springs to mind, but out of curiosity are there any places that could be used to store MK4's on the Southern network at all? MK4's have visited the Southern network before however as I recently saw a picture of 91023 (now 91132) at Streatham Hill for an open day when it was new with an MK4 rake.
Apparently WNXX is stating that the set has been debranded. Any idea when its due to depart BN?