tutti frutti. When Master Xehanort stabbed himself with his Keyblade, he sent his heart inside of Terra in order to take over Terra's body. And when a somebody gives in the darkness in their heart, their Heartless is born, along with their Nobody if they have a strong enough will. So my question is this, where did Master Xehanort's body go to? With the way MX is in BBS, it doesn't seem like that he would just allow his body to disappear, or at the least fade into darkness, without having done something with his body. This is also from the idea that Sora also stabbed himself with that Black Keyblade (don't know the name of it) in KH1 in order to save Kairi. This caused Sora to be a Heartless and thus Roxas(Nobody) was born. I believe that MX's body could be the MF, if not some other part of MX's overall plan. To me it doesn't seem right that he found out that his Keyblade could extrace hearts, let alone do it to himself, without having some sort of backup plan, should something go wrong. Thoughts and opinions.

Oh I love these. Me and my sadistic ways.

 

First part you got right. But it's possible that you don't completely comprehend how heartless are created. They're created when the darkness in a person's heart takes over and forces it to become a physical presence. A nobody is what's created from the empty shell.

And why wouldn't MX want his body to just fade away? It was useless to him, that's why he wanted Terra's body.

The 'Black Keyblade' as you call it, is The Keyblade of People's Heart. It is made from darkness and when Sora stabbed himself with it. His heart was subjected to the darkness and became a heartless.

The idea that MX's old body is MF is impossible, since both MX's mind and heart went inside of Terra, so his body is nothing. So unless Noruma decides to change some of the rules concerning how a Nobody is created.

He may not need to change the rules. He can just label him a 'special' nobody like Roxas and Xemnas. But I can see why he would want to keep his old body in use. His goal was to take Terra's body so he can live longer. Doesn't mean his body didn't have some years still until it dies. But I wonder if Master Xehanort knew his body would become a nobody. He would have to be aware of their existence, which we can't be sure of since we never saw any nobodies in BBS.

tutti frutti. Though it was just a theory, the MF could very well be anybody, which is something that won't be revealed until a later point in the series, if at all. It's not really "impossible" for MX to be the MF, more so since Xemnas was the Unknown, though I can more so seeing it as unlikely. MX more so wanted to live longer, like Oishii mentioned, more so to achieve his goals, but that doesn't really mean that he didn't have any use for his old body. MX could have done something that caused his body to be reused in some way.

Maybe MF is a very special nobody... Princess Aurora's nobody! Joking of course, but you never know...

tutti frutti. Assuming there is another Xehanort, I would no longer be surprised if there were any more versions of him.