Any ideas about this?

[HeartSeams]

I dont know if Yen Sid/Nomura meant: What if there are multiple Xehanorts, or, what if he is with allies but i'm hoping its more along the lines of:

Nomura's already made it pretty clear that it's the first one.

That isn't to say that Xehanort won't have allies, but, that's still not what the line was referring to.

 

[Vanitas666]

That's the epic finale to KHIII: the army of Soras vs the army of Xehanorts.

It rain soras! and so the Xehanort plants can grow...

I think MX and Terra will return but Terra won't be himself. seeing as AX is made of both I can't see him return

 

[VenAqua]

So, is it reasonable to deduce that Master Xehanort will separate his heart from his body to create, or rather, recreate Ansem and Xemnas?

Oh that is just too long for one storyline. cant they just die yet?