I was wondering and this is probably silly, but say for example, 10,000 years is up and there is another Avatar in that generation when Vaatu is about to emerge again inside Raava.
Is it going to be like attached to the Avatars body or Raava's (Spirity body) inside of that current Avatar?
This might be somewhat speculative (?) but I was wondering if there was anything canon that could support/go against this scenario in some way.