I know it's hard to see the world thru your widget shaped glasses at times, but I never said that NRT would become obsolete, WT. It's less relevant as a connecting point when the 787 finally shows up, but Japan is still a huge market.
When I said it will be easier for JL/AA and NH/UA to exploit the lack of slots at places like FUK, NGO, and KIX, it's because they already have people loyal to NH and JL to pull from. They have that domestic point of presence. DL has loyalty, but how much of it is ex-Japan, and how much of it is ex-US? Gaijin don't win very often when there's a comparable Japanese brand available.
And I think you probably need to remember that there's only one way out of the #1 spot. Nobody stays on top forever, and I think DL's quickly approaching the point to where continued growth isn't going to be sustainable.
your statement "DL has the most to lose" sets your mindset that in order for AA/JL to win, DL must lose. I find that problematic at best based on every piece of evidence regarding the market.
I know full well the power of ATI and joint ventures and I fully expect that AA/JL will make the most of it. But you also fail to acknowledge that even combined, AA/JL is 40% smaller than DL alone between the US and Japan, serves far less gateways, and will end up with less capacity between the US and HND. oneworld also has no presence in LAX-HND, the largest Tokyo market and JL which won the best coast award is using an aircraft from SFO far smaller than DL - and they chose to place one of their valuable HND flights in Star's hub where AA's ability to help feed the flight is limited compared with other gateways.
I do not doubt that AA/JL will improve their position in Japan but they are competing against DL plus Star, both of which are much larger than AA/JL.
What has not changed is that the Japan market is very unique in that NW - and now DL - enjoy a larger portion of the market than Japan's own carriers. Do you realize that based on published schedule by next spring when JL's restructuring appears to be complete, DL will be within a couple percent of total international capacity from Japan as JAL? That type of situation is unheard of in any other country in which US carriers operate and I doubt if there is a a similar equivalent in any large aviation market.
That is not a rose colored view of the situation but simply the reality that DL is the largest single carrier across the Pacific from Japan and that is true in every Japanese market.
Yes, I do think that there is potential to develop service from additional cities but JAL is shrinking its presence in secondary Japanese markets which makes it even less likely they will be able to add service across the Pacific while also defending their hubs in Toikyo.
When you add on the fact that DL has a cost advantage over both AA and UA, it makes it even less likely that those two are going to get into a market share battle in which they are likely to lose more than DL.
Remember that it was AA's CEO who very publicly argued that DL was too large to become a viable partner for JL w/o a lengthy ATI review - which JL cannot afford. AA now has to compete against DL. When you consider that DL and UA are already expanding their presence in Asia outside of Japan, which effectively makes Japan less important as a connecting point for all US carriers, it makes AA's job even harder. AA has to compete against larger carriers/alliances not only in Japan but also in the rest of Asia.
The JL win simply kept AA from being completely pushed out of the Pacific but AA still does not have the size in Japan or in other countries in Asia to compete against Skyteam and Star which are larger.
From that perspective, I have no doubt that AA will do what it can to make JL a key part of its strategy in the Pacific. Expecting other carriers to lose in order for AA to win is a long stretch at best.