Maybe you should just look at the scene. See whats going on. Sora drops a crown. You probably know about the Crown Hunt added to the Final Mix, right? They probably are having a discussion saying they should find the rest of them. It's a bit harder to interpret the Demyx conversation however. Better just wait until a proper Translation vid pops up on Youtube.
Everyone's starting to think that the Keybalde can be weilded by anyone. It all started with one Keybalde master: Sora. It was supposed to be Riku, but it chose Sora when Riku chose the darkness. Kairi was able to weild the Keyblade Riku gave her maybe because he allowed it. Like how Sora allowed Jack to hold the Keyblade. Perhaps these few have the power of the Keyblade, or the Keybalde may truly be weilded by anyone. Who agrees?
