Re: Confusion with Lea in Dream Drop Distance. Spoilers.
I've double-checked a bunch of other screenshots and art, and they're rounded there. Whatever "pointyness" you might have seen in your images is probably a stylistic choice for the hell of it (I've seen it in CoM artwork too, and some others), instead of being story-related. My point (lolpuns) is that if your theory were the case, I think Nomura would have made it more obvious and consistent, like he did with Xigbar and Saix.
Not quite sure about that. Often times I have seen side views with the slightly pointedness in cutscenes near the tips of his ears.
Here is an offical art of KH by Noruma himself. (The Org in this group all have pointed ears, but some are more obvious than others. (except Roxas). So perhaps it might mean something. Also they are the same characters that appeared in KH 2.) It is the trilogy saga of The games BBS, KH 358/2days Days, and Coded
Download Kingdom Hearts: All Together (2057x1526) - Minitokyo
Here some images of Lea with sligthly pointed ears on the tips
http://storage.siliconera.com/wordpress/wp-content/uploads/2012/03/axel_kh.jpg
http://24.media.tumblr.com/tumblr_lzen3nk9eI1qgs580o1_500.gif
Here is Axel
http://media.giantbomb.com/uploads/0/1111/320868-axel15diff_2.jpg
http://2.bp.blogspot.com/_ZcRggcLpF_Y/R8sIW4qtwPI/AAAAAAAAAA0/781HOed7_Fc/S660/axel.jpg
KH 358/2 Days, Japanese cutscene: 22 - The Winning Stick#
http://i4.ytimg.com/vi/Wucm-nSLuDY/mqdefault.jpg
I was n't really reading into the pointy ear business until I bought the same poster and looked how the ears diferentiate with the characters. So it sounds like to me that Noruma had this all planned out Xeohanort thing from the beginning. So maybe he is forshadowing. I just noticed that Axel had pointed ears as well so I went back and looked at the cutscenes to see if there was some mistake, but behold there they were. So now I am second guessing where that leaves Lea. I noticed the cutscenes he was in had them as well.
Whatever the case it is intentional and I gave proof and went over looking at images to make sure they were geninue and they are.
As for the picture that is simply hilarous. If only they would not get the two confused now. XD
I've double-checked a bunch of other screenshots and art, and they're rounded there. Whatever "pointyness" you might have seen in your images is probably a stylistic choice for the hell of it (I've seen it in CoM artwork too, and some others), instead of being story-related. My point (lolpuns) is that if your theory were the case, I think Nomura would have made it more obvious and consistent, like he did with Xigbar and Saix.