First off is when you fight Terra in the gathering place he says that he didn't choose Sora. I thought about that statement and many people believe that it meant that Terra chose Riku to defeat Xehanort in kh1, and for a time i thought that too but i eventually thought that was a little unrealistic. Then one day something hit me, did anyone think the fact that there was a specific reason that the portal to fight Terra is in Disney castle then a thought hit me what if he wanted to talk to mickey since he was with him or was involved with him in the past. But most likely mickey joins that fight in BBS and helps them win or keeps them alive or just helps out(since we don't know the outcome of the battle so it could have been the first or last battle of Terra's for all we know). since as we could see in the fight he mourns his friends and if mickey was involved with him and his friends which as we know is that he is connected to them, it kind of like how old people like to talk about things in the past not saying Terra is old but you get the picture.
Next is the name Xehanort as everyone knows means no heart x, and this is just me but that seems like an unusual name but then i thought what if it is a title such as if a person was a king or queen. Since in different cut scenes we see the name Xehanort and master Xehanort which could mean that it is in fact a title of certain people which would mean that in the past there was a group of dark key blade wielders that were either disbanded or killed in the past. this would also mean that there were more than one Xehanort cause i don't think the Xehanort from KH1 is the UEM like some people believe. Cause i mean ok someone losing their memory is one thing but someone losing their memory and becoming younger is a little out there that is why i think the DS is the Xehanort. But now people are going to whine and say well what if there are a lot of people with the title of Xehanort that would mean the whole story would be screwed up and blah blah blah but i believe that only the super elite have that title cause i don't know about you but the UEM and DS look super elite to me.
* i know this is a little far-fetched but it is just something i noticed*
Next is the name Xehanort as everyone knows means no heart x, and this is just me but that seems like an unusual name but then i thought what if it is a title such as if a person was a king or queen. Since in different cut scenes we see the name Xehanort and master Xehanort which could mean that it is in fact a title of certain people which would mean that in the past there was a group of dark key blade wielders that were either disbanded or killed in the past. this would also mean that there were more than one Xehanort cause i don't think the Xehanort from KH1 is the UEM like some people believe. Cause i mean ok someone losing their memory is one thing but someone losing their memory and becoming younger is a little out there that is why i think the DS is the Xehanort. But now people are going to whine and say well what if there are a lot of people with the title of Xehanort that would mean the whole story would be screwed up and blah blah blah but i believe that only the super elite have that title cause i don't know about you but the UEM and DS look super elite to me.
* i know this is a little far-fetched but it is just something i noticed*