There is still no set date for the English release of the game, but in an interview, producer Hajima Tabata was able to say that the release will be within a year. So we can expect it no later than August of 2015. He also confirmed that the game is about 80% finished. With the KH2.5 release in the Winter, it is likely it won't be released at least until next year.

Source: Eight Big Final Fantasy Type-0 HD Questions, Answered