Back in June 2015, Kingdom Hearts Unchained X[chi] was announced for North America and Japan. While the Japanese release has come and gone, the game is still unreleased for Western release. Back in June, the Official Kingdom Hearts Twitter tweeted that any availablity outside of North America and Japan was still TBC (To Be Confirmed);
We're just announcing the Kingdom Hearts Unchained Key North American release at #E32015. Any availability elsewhere is still TBC.
On September 3rd 2015, the Australian Classification Board rated Kingdom Hearts Unchained X[chi]. Not only does this show that the international release could be releasing sooner than expected, but it also reveals that countries outside of Japan and North America will have the game available on their various Smart Phone stores.