That's a tricky question. And the answer is yes and no. Technically he knows all, correct? He knows what will happen to all of us. Except there is one thing: free will. We can choose to do as we please. He still knows all of the decisions we will face and the outcome no matter what path we choose. So he knows each and every one o our possible destinies. But I believe that everyone has the potential destiny to end up in heaven.