I've been banging on for ages about them being a more than suitable fit for some Northern routes. Yes they are heavy and more expensive to run, but their ability to deal with the difficult conditions that the Pennine routes throw at them (and this is why they were built the way they are after all) must make them candidates to operate routes like the Cumbrian, South Pennine, Calder Valley, and even possibly & S&C and Carlisle-Newcastle routes, allowing some of the planned units for those routes to be released for strengthening elsewhere. And as Liam Sumpter says, they are on the lookout for units due to be released for the period of this franchise.