For anyone whos interested this is what's happening in Cambridge:
All but a few NC bodied Volvo Olympians have been withdrawn. The majority of MAN's have moved to outstations and some have also gone to Peterborough. All tridents have now gone to outstations, some have also moved to Fens and Peterborough.
These have in turn displaced Volvo Olympians and a few Darts, which have moved to Fens.
Some MANs are retained in Cambridge as spares and to work services Citi2/4
Citi1/3/7 are worked by the new E400s
I know its not SCNW but thought it may be of interest in general