That market with potential and no/little competition is Jet2's turf, to long haul destinations, I.e everything from EMA to GLA, transatlantic and perhaps some to India, Kenya, Maldives etc, maybe further afield. They could also put widebodies on some of the Canaries, Balearics, Cyprus, Greece, mainland Spain runs. I.e from Newcastle, replacing one 757 with a widebody once/twice weekly to Tenerife, could cover the loss due to TCX, TOM and LS all downsizing by about 30-45 seats per flight, or 60-95 return. As an example, dont shoot me down in flames for suggesting it but if they took some ex EK A332's (2 class) and simply re-upholstered the interior, that would be 278 seats available, which I think is probably the correct-ish amount. But to keep costs down they might want to do something a la Corsair, 304 seats or TCX/MON 323/374 seats... Not the most customer friendly but more profit margin.