Unknown XIII

When it comes to that its just going to be a wait and see kind of thing... all of those characters could be one of the seven lights. You could also count Namine and Xion too I think because like it was said in Re:Coded they still need to be "saved from their torment".

Why couldn't it be both the original and the Nobody? after all both Xemnas and Master Xehanort are back... Maybe the original just isn't unmasked yet.

Also just remembered that Vanitas has the same eyes. Probably makes him one of the 13... if he comes back from the dead, which is likely to happen all things considered.

So we know that Master Xehanort is gathering 13 dark beings to fight the 7 light. We know a few of these people... Master Xehanort Young Xehanort Xemnas Ansem, Seeker of Darkness Xigbar (Or has he become Braig?) and Siax (Or has he become Isa?) The thing that all of these characters have in common is their eyes. They all have Yellow Eyes. Originally people thought that Yellow Eyes meant that they had fallen to darkness. Now I'm thinking that Yellow Eyes means that a piece of Xehanort's heart resides in these characters and that means they are one of the 13.