It's one of those ones that has to happen sooner or later isn't it. The lack of any German routes at all is a particularly big hole in Belfast's route network. FRA or MUC perhaps? Would be nice to eventually have both. I know, I'm greedy.
Lowish loads for Vueling mentioned in that report (60%) but IIRC they have achieved this in their first season despite EZY loads on BCN having been pretty much unaffected.
Seems like BHD really are proactively trying to develop their route network though