Well some guards claim Arriva are hiding their plans for Northern but I think the reality is Arriva have consulted the RMT on routes suitable for not having a guard and the RMT have said "That's not up for discussion" meaning the RMT members have no idea what Arriva are consulting on.
From what I understand it the first time the RMT went into talks with Northern before the first strike one of the Northern management team handed the RMT representatives a network map and a highlighter pen and said we want to consult with you on what routes will be DCO so you draw what routes you feel should be. The RMT reps said no as they didnt want any DCO. It was more of a negotiating tactic by management to put the RMT on the spot than a serious consultation. There has been no further consultation on the matter since.
I think the feeling amongst staff is that they are being deceived by Arriva because senior management still say they have no plan as to which routes will be DCO. If Arriva knew that 50% of passenger millege had to be DCO then surely when putting the franchise bid together and ordering new trains they must know what routes (or at least 90% of them) they are planning to make DCO. To say 2 years on after winning the franchise that they still have no idea is either a big fat lie or complete incompetence.