I see EasyJets Winter 2018/19 flights are going on sale on Thursday. All six aircraft are remaining at BFS all year I think I seen a while back when the 6th aircraft was announced.
Also I think I seen some of the new routes that are starting in June are going to be year round not sure which ones but I think IOM was one.
I would say there will be some increases on current routes to if the 6th aircraft is staying year round. And maybe a new route or two!