Here are some new tidbits of information gathered from scan translations regarding the three known entrants in the Fabula Nova Crystallis. The part about Shiva turning into a bike made me think they're reinventing elements like Advent Children's Fenrir, but see for yourself below.

Final Fantasy XIII: * The new male character's name is related to weather, but not related to the female lead character Lightning * The summon beasts are vastly changed, for example Shiva can now transform into a motor bike, and she can use more than one element, not limited to blizzard * It is possible to transform the summon beasts into other forms like motor bike during the battle * The crystal will give users the power to invent/compose certain things * There is a city inside a floating Cocoon, which is formed by the crystal and protected by a machine * There are some mysterious changes in the crystal, causing the cocoon to be "awakened" * To stabilize the cocoon, people performed emergency treatment to it, banished residents inside the cocoon and move them back to the ground * The Crystal chose Lightning (the female protagonist), and gave her the fate of leading the world. People believe she's an enemy to the human race, she will lead the world into ruin.

Final Fantasy Versus XIII: * The game play will be similar to the Kingdom Hearts series, with more action elements than the FF series * The male protagonist is capable of teleporting to where his weapons are thrown. * He has some sort of limit to his power. * Originally there was no good or evil, but soon it will be divided between the two, in the last Kingdom where the crystal was held * The Kingdom is very advanced in technologies, and isolated from the outside world. * The Kingdom is protected by Magic Order, but a group of invaders from outside began to invade the city for the crystal

Final Fantasy Agito XIII: * The game will be in full 3D * The protagonist is supposed to protect the crystal * The game will be available on mobile phone by the end of 2007