I just had an idea of what his would could be....
Well Zexion is very attached to Xemnas ( or so we hear ), So during one of the interview with Nourma they asked him If the boss fight with the guy from KH1 ( that secret guy that has Xemnas lightsabers ) was right before the sence when Xemnas is talking to Roxas and he says: Hes been to see him, He looks a lot like you, and so on. Nourma kinda said, well you could say that, but not really giving any information. Anyway this is the idea, what if that guy in KH1 ( mr. lightsaber ), is really Zexion that you foght with?
Well Zexion is very attached to Xemnas ( or so we hear ), So during one of the interview with Nourma they asked him If the boss fight with the guy from KH1 ( that secret guy that has Xemnas lightsabers ) was right before the sence when Xemnas is talking to Roxas and he says: Hes been to see him, He looks a lot like you, and so on. Nourma kinda said, well you could say that, but not really giving any information. Anyway this is the idea, what if that guy in KH1 ( mr. lightsaber ), is really Zexion that you foght with?