The internet is abuzz with hypotheses about a countdown clock that Kotaku has uncovered for something called Project Destati. The flavor text on the site mentions Kingdom Hearts, so does this mean we're looking at a future announcement of a Kingdom Hearts game? Or is this just a fan made music project?
Destati -- meaning "Wake Up!" -- is the name of the one of the songs played throughout the Kingdom Hearts series. Looking at the wiki entry discussing Destati, we see a screenshot that looks very much like the image above the countdown clock. The description of the screenshot says this is a "Dive into the Heart" image, and features what looks like Sora floating above a castle or cathedral. Of course the Sora figure is missing from the countdown image, and is instead replaced by an iconic KH door.
The Project Destati Tumblr page has a larger, more detailed version of this image, and the words: "Take your time, don't be afraid, the door is still shut." Cryptic messages are also posted on the Tumblr: " Door. Listen Closely. Find the Key. Open the Door." The Twitter messages on the Destati account lead me to believe this is an ARG of some kind, since they are quoting messages from Kingdom Hearts.
And yet, we see in the countdown page's source the following:
"Project Destati is unofficial. It is not affiliated with or endorsed by Square Enix or Disney. Licenses for the legal distribution of the project were obtained."
So I have to conclude this is a fan-made project, most likely in ARG form. In which case I have to ask, where is this door? And what happens when we find the key? why is a .jp website all in English, and why is their contact email a simple gmail account? If you're interested in finding out, sign up for the email list, and leave your speculation on clues in the comments.