Board Thread:Naruto Discussions/@comment-25221642-20140813021755/@comment-25294339-20140813194636

Her being as an alien is a really weird hypothesis, to which I just cannot concur. She looks too much like a human. The sheer fact of aliens in the Narutoverse throws me off as well.

Like I mentioned earlier, I think it's to replace the currently-Earth-inhabiting humans.