Throughout the series, one of the telltale signs of someone being or containing a part of Xehanort is that they have pointed ears. Here is a gallery of each of them which shows their ears:
Master Xehanort
Terranort
Braig
Xigbar
Saix
Ansem (not as pointed as the others, but still a bit.)
Xemnas
This is every incarnation of Xehanort except one. And this one Xehanort brings up a question:
Young Xehanort. He is the only one (besides Ansem, arguably) with round ears. I think something must have happened to his heart that causes whatever body it occupies to have pointed ears. I think this could possibly be one of the plot points if this happens to him in KH3. Why do you think every other Xehanort has pointed ears, but he doesn't?
![q3JAaTP.png](http://i.imgur.com/q3JAaTP.png)
Master Xehanort
![xj3owWL.png](http://i.imgur.com/xj3owWL.png)
Terranort
![BcszQNd.png](http://i.imgur.com/BcszQNd.png)
Braig
![1Zu13fi.png](http://i.imgur.com/1Zu13fi.png)
Xigbar
![kWMmL3p.png](http://i.imgur.com/kWMmL3p.png)
Saix
![nClEKqt.png](http://i.imgur.com/nClEKqt.png)
Ansem (not as pointed as the others, but still a bit.)
![S8sG1tf.png](http://i.imgur.com/S8sG1tf.png)
Xemnas
This is every incarnation of Xehanort except one. And this one Xehanort brings up a question:
![ioJX0Hx.png](http://i.imgur.com/ioJX0Hx.png)
Young Xehanort. He is the only one (besides Ansem, arguably) with round ears. I think something must have happened to his heart that causes whatever body it occupies to have pointed ears. I think this could possibly be one of the plot points if this happens to him in KH3. Why do you think every other Xehanort has pointed ears, but he doesn't?