I've said that all along that 4653/9 will end up at Darlington, and then somewhere along the line 4660-4 will end up down here aswell but that's just my thoughts
But from what I have heard (might just be rumours) 5 omnicities will be on the move again sometime, as apparently Stockton are getting them back for a route up that way could be wrong but the information came from a reliable source and newer vehicles would be coming for either x26/7/26A or the X66/7
RE: Arriva North East: Latest News & Discussion - February 2016