Who is most likely to be gone for good?

[Varnish 319]

Well... Kairi possibly becoming like Aerith/Aeris from FF7 isn't entirely out of the question. I hope it doesn't happen, but with the most vocal of the fandom wanting her gone...

I think that it would be unfair for her to go. It seems that her time to shine has finally arrived, so I hope that the time is well-spent.

[venxas24 544]

I think Ansem the Wise is pretty much already gone. I don't see much purpose he could still have in the series unless he shows up and lead the people of the organization like he did before the became nobodies

[Varnish 319]

I think Ansem the Wise is pretty much already gone. I don't see much purpose he could still have in the series unless he shows up and lead the people of the organization like he did before the became nobodies

He is not gone. He is simply trapped in the Realm of Darkness with Aqua, and he has some level of amnesia. He will come back, though I agree that it is hard to know what his purpose will be when he does.

[ZOBLIVION 13]

Kairi. Sounds like something they would do to create an emotional scene near the end.

[Oblivion16 82]

Kairi. Sounds like something they would do to create an emotional scene near the end.

I dont think this will happen. It wouldnt really make sense for her to die since shes finally gona get some screentime and all.

[Mystics Apprentice 2,397]

Kairi. Sounds like something they would do to create an emotional scene near the end.

Nah, the Kingdom Hearts series isn't about breaking hearts, really, so I doubt they'd do something as tragic as to kill Kairi off for good.  Riku, maybe, Terra, sure, but not Kairi.  Out of the possible options, I believe either Vanitas or Roxas will permanently disappear.  I slightly suspect Roxas will merge with Ventus in the end, leaving Sora's heart permanently and living on inside Ventus.  This is just a personal guess, though.  I really have no idea what will happen in KH3.

[Emily Murphy 28]

About the poll I thought Roxas was pretty much already gone. I'm not sure, I want to say Riku but I know that probably wouldn't happen. I'm gonna say either Terra or Lea.

[Neptune Vasilias 340]

I think Terra will be gone for good and Xion won't actually come back(Hopefully)

[ZOBLIVION 13]

Nah, the Kingdom Hearts series isn't about breaking hearts, really, so I doubt they'd do something as tragic as to kill Kairi off for good.  Riku, maybe, Terra, sure, but not Kairi.  Out of the possible options, I believe either Vanitas or Roxas will permanently disappear.  I slightly suspect Roxas will merge with Ventus in the end, leaving Sora's heart permanently and living on inside Ventus.  This is just a personal guess, though.  I really have no idea what will happen in KH3.

Ok, maybe you're right. That merging thing is actually a pretty good idea.