Animax Asia has a mysterious teaser trailer. From what I heard, it has an encrypted message. What's interesting is that they promised it will be a fresh Japan episode. For the first time, it will be simultaneous airing with Japan. In my years of anime fandom, this was never done before. Check it out.
Intrigued? So am I. According to a source, there's more to reveal on September 24. You can interact your thoughts about it on their website.