Well there are currently 2 theories floating around...
1) On the 3rd new moon of july, testing will be finished, and in a fortnight, it will be released at the stroke of midnight, but the 19 bells MUST ring before this and all the scrolls must be found in time. If the water is not the right temperature, the file will be corrupt, and it will do you know good if you haven't found the green beacked falcon. I've already found mine.
2) no one knows when it will be done, they will release it when they think it is ready