And who exactely are the top 6 airlines? American, Delta, United, are these
some of the airlines you call 'top 6 airlines'? Well you're right if you talking about number of passengers carried or the size of their fleets. it takes more than that to be called a top airline.
First of all, there is no need for petty, immature remarks like that. That seems to be all you know how to do on this forum.
As far as Asian airport expansion, most of the new airports that have been built were built with future expansion in mind. ICN, KIX, CLK, KIA, PVG, etc. While many Asian airports are quite crowded, they are not too busy in terms of aircraft movements (not necessarily a bad thing). To my knowledge, there is not one airport in Asia that handles more that 250,000 aircraft movements per year; they can easily accommodate more traffic. CLK, ICN, PVG have been designed with this sort of expansion in mind.
Furthermore, there is already evidence of fragmentation within Asia. This is even the case with intercontinental routes. LH already flies to Asia (Bangkok and I'm sure a few other routes) from MUC. Many Asian airlines fly to MAN. Even within China, other cities have already started intercontinental routes (Guangzhou being one of them). Carnoc brought up the example of many more flights being offered within China for the sake of convenience. This demand will grow even further as China develops more. I believe the airports currently have the capacity to accommodate these increases. Also, more cities in China will demand more services as their economies grow and investment goes there. Chongquing, Chengdu, Wuhan, Shenzhen, Tianjin, to name a few, are all large cities with huge economic potential. They are going to want to get into action as well, including getting more commercial airline flights. And while an A380 maybe justified on routes from Shanghai and Beijing to JFK, LAX, LHR, SFO and FRA, routes from Chongquing, Wuhan, Shenzhen and Guangzhou do not justify such a large plane. And I don’t think business leaders from those cities or anyone going to them would want to funnel through Shanghai, Hong Kong or Beijing to make those connections. To further elaborate, LH recently said that they would like to fly to at least ten cities in China within the next ten years. If that isn’t fragmentation, then I don’t know what is. I seriously doubt that all those cities will get a plane of even the 747’s size.