*spoilers*
Avatar's ending was total bullshit, Quaritch committed wayyy too much badassery to die. Although apparently Cameron agreed with me and check out this shit that's going down in the sequels:
http://movies.yahoo.com/feature/movie-talk-avatar-trilogy.html
particularly this part:
As for other cast members returning for an "Avatar" sequel, actor Stephen Lang, who played Colonel Miles Quaritch, the baddest guy in the movie, thinks he could make a return: "You think those two arrows in my chest are going to stop me from coming back?" Lang told EW, "Nothing's over so long as they've got my DNA."
That's right. Quaritch clones all over the place, ruining everyone's shit. I hated this movie until I read that.