Well I don't know if its really answered but, to me in my opinion Xion will return in kh3. I know some say that she can't return due to the fact, everyone forgot about her, it will mess up sora's memories, she was only there to fit in a plot hole etc etc. But for me i think she will return from the "key to return hearts", maybe she had a replica heart or something? Like she said before, even if she will be forgotten the memories of what she did will always be there. Maybe the reports of the organization are still there, sure they said the memories of her are forgotten on their minds, but what about the reports? Sorry for not really able to explain to much about it been a while since I wrote a theory . What do you guys think? 

oh dear god i hope xion stays absorbed or dead or whatever the hell she is one of THE most annoying chars in kh right before tidus and selphie, the fk were are they in kh for anyway?...wakka your decent...i enjoy his hawaiiness 

Well I don't know if its really answered but, to me in my opinion Xion will return in kh3. I know some say that she can't return due to the fact, everyone forgot about her, it will mess up sora's memories, she was only there to fit in a plot hole etc etc. But for me i think she will return from the "key to return hearts", maybe she had a replica heart or something? Like she said before, even if she will be forgotten the memories of what she did will always be there. Maybe the reports of the organization are still there, sure they said the memories of her are forgotten on their minds, but what about the reports? Sorry for not really able to explain to much about it been a while since I wrote a theory . What do you guys think? 

Counting the number of times it's been hinted in Re:Coded, DDD, and BBS; it's been obvious for a while that Xion will return in...some way. It's been hinted ESPECIALLY in Re:Coded in its ending. "All of these people are hurting, yadayada" And Xion was RIGHT THERE when Namine was talking in that ending. "...And you're the only one who can save them blah blah. " We don't know how or why she'll return. It's up to Nomura to decide since most likely there will be Nomura logic as to how she will return. 

WOOOOOOOOOO XIOOOOOONNNNN!

 

yeah it seems like they're planning on bringing back all the nobodies and replicas, they keep showing up and there's always comments about how people are connected to sora and all that. I just hope there's a new Xion boss fight cause she was an awesome boss in days.

How can Xion and Sora be alive at the same time

nomura logic. That'll be the thing that somehow explains it.

 

A similar question: How did Roxas and Sora exist at the same time? 

 

Answer according to DDD: The love in Sora's heart for everything. Nomura Logic at it's finest.

Everything about the girl is tragic [even her theme for crying out loud. I mean it translates literally into "Music for the Sadness of Xion].

For crying out loud, give her the happy ending she so desperately needs please ;A;

^This

I would so much love her to come back. Hopefully as one of the Guardians of Light, even. Tho I doubt that. Xion deserves a happy ending.