We effectively already have that with One World, Sky Team, Star Alliance, EZ and FR. Europe is to all intents and purposes dominated by 5 groups/alliances. I think we'll just see further consolidation within those groups/alliances. I think 5 big players is a good number to maintain competition and wouldn't be too worried if IAG (for example) ended up owning all the EU based airlines in the One World alliance. All IMHO of course
