It doesn't matter if Sony will sell through or ship in Japan, the battle is decided in there. Sony is in a position that is too perfect. They only need to attract japanese devs to make games and everything will be alright. As long as Wii U is struggling in Japan and lol worldwide, with 3rd party games not selling on it, it's going to be hard to support a system that has no global appeal at all. They can look at PS4 as their only chance of making it outside of Japan.