From the last few seconds of the Jump Festa trailer YX he said something about Sora having others' hearts with in him. It made think that Xehanort knows tha Ven's heart is inside of Sora, but how does he know?
Maybe 'Ansem' or Xemnas saw similarities between Sora and Ven and Xehanort saw those memories and figured it out for himself?
Maybe 'Ansem' or Xemnas saw similarities between Sora and Ven and Xehanort saw those memories and figured it out for himself?