If Wizz makes a move at scale at Gatwick, so much so to deter Ryanair, easyJet has a real challenge on it's hands, given Wizz cost position as Ultra Low Cost. If such an event took place you could see easyJet needing to fundamentally transform its own cost base. Alternatively, given the other opportunities that may arise around Europe, would Ryanair make a serious investment at Gatwick?
The big question is what airlines will migrate from LTN and STN?