There is a good article in this month's Air Transport World about Haneda. Bottom line is that the Japanese are only opening 4 slots a day into Haneda for US based carriers (ie we might get 1 slot). Delta (and others) have already stated this is less than what is needed to make the operation economically viable.
The Japanese mostly see Haneda as a way to bail out JAL by giving them a competitive edge and nearly a monopoly on service out of that airport. This is all about propping up JAL and not about the Japanese people wanting a more convenient airport, better service, or future growth. My take on this is the exact same that our MEC published today ... the Japanese are not going to structure this in such a way that it provides jobs to Americans.
The good news is that there is a high speed rail line now being built to Narita to make that airport more accessible. Also, the operators of other regional airports in Japan are fighting the opening of Haneda to international operations since they fear it will divert resources and traffic from their airports.
My take is that this reminds me a lot of Pan Am and the "crown jewel" Frankfurt was, only to be shut down two years later. As with most of my prognostications, I hope I'm wrong.