You guys ever think that Terra is more drawn towards Xemnas than Xehanorts Heartless, Terranort had both Terras and Xehanorts hearts right? Well what if when they became seperated that Xehanorts Heart went to his Heartless, giving him his jacket appearance and the slight appearance of his younger self and Terras Hearts went to Xemnas making him save Aquas armor and appearing like a long, silver-haired Terra.

What if the Kingdom Hearts of mens Hearts was sort of a way for Terra to come back and bring Aqua and Ven back too, what if he had been plotting the whole time he was Terranort and when he became Heartless/Nobody he saw his chance for revenge?

In all honesty, you lost me. All I know is Master Xehanort took over Terra's heart and body. Terra-Xehanort's body became Xemnas and his heart became Ansem.

It wouldn't be strange. Xemnas has Xehanort's body, but since Xehanort possesed Terra's body, you could say that Xemnas has Terra's body and Xehanort's mind.

 

(I feel like your doubt comes from something I tried to explain here a few days ago http://kh13.com/forum/topic/103799-spoiler-aqua-meeting-terra/?p=1918876)

The way I see it Terra was divided between Ansem and Xemnas. Ever since Terra was introduced in BBS, I've begun seeing Xemnas as Terra with Xehanort's dark skin and personality, and long silver hair that's pretty much how Terra's hair would look after over a decade. Also between Ansem and Xemnas, I kind of see more of Xehanort in the former and Terra in the latter, not only physically but also in things they say and do. Especially with how in 358/2 Days, when Roxas is in a coma, Xemnas looks at him and says "So, sleep has taken you yet again...", comparing Roxas to how Ventus slept in the Land of Departure. Then there's all of the times he talks to Aqua's armor in the Chamber of Repose. With Ansem, Riku tells him that he reminds him of someone he met as a child, that person of course being Terra.

 

A similar case can be made with Ventus, Sora, and Roxas. Ven's heart was within Sora's when Sora lost his heart in the first game, in the same way Terranort lost Terra and Xehanort's hearts at the end of Birth By Sleep. Roxas is Ven's identical twin but can be technically seen as Sora and Ven's Nobody as he came from both of their hearts.