EasyJet will continue to bring in enhancements to the their model to offer something more than the LOCO's, they will seek out competitive advantage and in my view, move more towards full service carriers in some ways, e.g. offering interlining, while it is convention that LOCO's don't do interlining, easyJet will need to differentiate and they cannot lead on cost.
Long haul will eventually work on LOCO and easyJet would seem like the natural carriers for that in time. But that will require changes to the landscape.
All that said, a serious accident taking place with a LOCO could mean that the industry could go into a new direction and take the focus off LOCO, something like Valujet in the US. That said safety is a top priority for carriers, so hopefully we will never witness such an event.