Should the Avatars totally integrate into the Na'vi?

[Anonymous]

Realistically, no. As cool as it might be, they need 'good' human characters for the sake of the plot, possibly to cut down on the motion capture expenses as well. As much as Cameron might want to push the envelope as to how much CGI he's willing to use in these movies, I doubt making absolutely every 'good guy' a Na'vi would be cost effective.