So someone updated wiki with some Versus XIII news but I dunno if it's true or not but if it is, it sounds interesting.
Quote:
However, not everything is right with Noctis. He begins to develop multiple personality disorder and feel the presence of another person inside him. This other person believes that there is nothing either morally good or bad and that fools have set the rules in Noctis' world. When this other person takes over, Noctis' body becomes far more powerful and his eyes turn crimson red. However, the personality of this other person is cruel and immoral. They are also very intelligent and cunning. Noctis does not know where this other person has come from, but he knows that they are far more powerful than he is. For Noctis, the battle becomes not only reclaiming the last crystal, but also reclaiming himself.