User blog comment:Xilinoc/Ch. 585 - The Headless Star 4/@comment-24913480-20140618122335

I have the slight impression that after (or before) Yhwach is defeated, the Soul King will reveal himself as the Ultimate Bad Guy of the series and the creator of the Quincy king. Remember when, back in the arrancar arc, the shinigami discovered that aizen was planning to destroy Karakura Town in order to create his own King's Key. It was said the first King's Key was created the same way so the Soul King had to kill 100000 people at some point in the past. That's evil doing right there.