Must be Jet2 for the 6 new routes. Surely increasing the based fleet with a 738?
As for destinations, a 738 would bring Eastern Med more into play. Maybe something to Cyprus or Turkey or another of the Greek islands?
If they are announcing 8 routes and jet 2 doing 6, hopefully Norwegian will be utilising the aircraft during their long layovers in BFS to do something fairly nearish on mainland Europe. Or perhaps the FR to Rome that was muted above will be one of two from them?