Well since we've got the Xehanort's keyblade ability revealed,so to see the future,i think it's clear why Vanitas looks like Sora. So in kh bbs ventus shared his heart with a early born Sora to make him whole again,then Xehanort extract the dark side of Ventus that means the Sora's side of Ventus and the reason is simply because the eye made him look like future Sora because Vanitas is Sora,the keyblade took future Sora appereance for vanitas because it has seen the future version of the other part of Ventus's heart (Sora/Vanitas).What do you think?
Well since we've got the Xehanort's keyblade ability revealed,so to see the future,i think it's clear why Vanitas looks like Sora.
So in kh bbs ventus shared his heart with a early born Sora to make him whole again,then Xehanort extract the dark side of Ventus that means the Sora's side of Ventus and the reason is simply because the eye made him look like future Sora because Vanitas is Sora,the keyblade took future Sora appereance for vanitas because it has seen the future version of the other part of Ventus's heart (Sora/Vanitas).What do you think?