Ideally Microsoft could do with a partner for Japan and a restyled more compact console. They should wait perhaps until the second generation of xbox one and launch it much more tailored to Japan with perhaps more bundled games and a choice of colours for the console. It's not just Japan the xbox one could sell to in Asia there are many other countries there that could do well for Xbox one. China and many countries there buy American brand cars that sell badly in Europe. No reason they couldn't sell a lot more xbox one's into Asia.
Xbox one is a long way behind PS4 and can't afford to allow PS4 regions where the xbox one doesn't compete at all. If PS4 becomes the dominant format then developers will concentrate on ps4 which already has a huge technical advantage over xbox one. If developers prioritise ps4 the xbox one versions of games will be even weaker again because they won't put the same effort in.
