I don't know whether I would define XL.com as a low cost carrier. There is certainly going to be more consolidation in the market, I suspect that Easy, Ryanair, BA, KLM/Air France, Lufthansa will be well placed to survive, it will however take some fleet reductions, redundancies and a severe tightening of the belt. Airlines that I think could be in trouble... Alitalia (light), Wizz Air, SAS, Air Berlin, Swiss, Olympic. Time will tell, good luck to all effected.