You know I'm really starting to think the game is going to become a MMORPG. Nomura said it was going to be more then just a game. Not only that, but like other MMORPG's, there will be some story line. That also could explain the gaps of the keyblade, AND explain the keyblade war. In order to wield the keyblade you must have a strong heart. Kairi learned to wield it when she wanted to despartely see sora. My guess is, throughout this MMORPG you learn the secret of the keyblade and you work your way through the game trying to obtain one, and then unlocking all its true powers. I'm thinking the game is set in the past due to what Xigbar said, "Man you're not even half the hero the previous keyblade masters were." This indicates that not only were there previous keyblade masters. It also means, the organization knows something about them. This ties into Zexion, Zexion was a pretty shady character. Wheter Zexion is alive or not is not currently known (his "place" was way messed up. I'm pretty sure you are gonna get to meet the nobodies, the heartless, and the other keyblade bearers. This MMORPG I believe, will be something like Fable. You can choose the road to light, the road to dark, the road to twilight, or the road to dawn "The Keyblade brought peace and destruction." As you progress through the game you learn more abilities and more truths. At a certain point however, when you've unlocked all the secrets. It becomes like an MMORPG. You can fight for the light or dark or fight both, or whatever. It sounds like it could be a massive RPG. I'm saying there could be some plot, and some kickass RPG going on