@Gunslinger_BlaQ: Not a bad theory as far as the brainwashing view is concerned, however, I give the GS/D crew too much credit to even consider Neo being Mwu for such a reason. According to me, it's a far too easy "solution" and the most stupid kind of cliche available in the world of anime (and action entertainment as a whole). Having Mwu survive as Neo would make absolutely no one happy, considering how good his death was and how extremely simplistic and amateurish it is to just brainwash an old character.

I just don't think of the plot as that predictable.