So there might be some truth to "low-cost out, traditional in", though that`s just a rough guestimate
Wonder what you mean by low cost. I think the consept is here to stay. People are travellling by air in the same way as you catch your bus. There is just a matter of getting from A to B in the cheapest fastest way. Read in the newspaper that Norwegian was flying only 90 000 less passengers than sas on norwegian domestic routes in sept. Seems like money talks