Complete the game u get to use the x blade in your new game. But to use it u need to be in your valor drive form with two kingdom key once u do that there will be a reaction command saying fuse or form and once you press triangle it will show a little scene with sora fusing the two kingdom key to create the x blade wouldn't that be awesome.

 

This is just my imagination I know to form the x blade you need 7 light and 13 darkness

I doubt that would happen. There isn't a reason for Sora to have two Kingdom Keys. 

Don't see it happening

We don't know if forms are returning

There's no reason for him to hold two kingdom keys when it's 13 pieces of darkness and 7 of light, or Ven + Vanitas that would create the x-blade

I admit it'd be a cool animation but I can never see it happening

It'd be cool to have the xblade once you beat the game and 100% the journal. The other stuff is a little out there though...

I doubt that would happen. There isn't a reason for Sora to have two Kingdom Keys. 

Maybe Kingdom Key D will be available for use.

How is there more Darknesses then Light

How is there more Darknesses then Light

Represents the formula of xehanortLight>darkness in potencyLight is powerful enough to have the same amount of energy in smaller dosesThink of it in terms of the worlds, darkness surrounds them, but in the small places of the worlds, great light power is contained thereSo in conclusion a light is about .87 percent more potent than darkness, almost twice the powerYou just been mathatized!Word