Square Enix has opened up a mysterious teaser site. For what? View the lengthy flash movie at the site and see if you can guess!
You can also view the video here:
The video lists a number of keywords like crystal and summons (along with Odin, Titan and Diablos). Masaki Hirooka and Yusuke Naora are credited with illustrations. The trailer also lists "Summer 2012," presumably as the release time frame.
Details will be announced soon, according to the trailer.