If Cameron didnt direct then who ??

[Spock]

Peter Jackson hands down, hey he started WETA digital. Or at least its a subsidiary of his realm.

[Vauktu]

James has confirmed that he would be directing any and all sequels.

I may not know who will direct the sequel to Avatar if Cameron weren't going to, but I do know for a fact that Jeremiah is correct - James Cameron will be directing the sequel.

[Demiurgos]

Ridley Scott :

1977 The Duellists
1979 Alien
1982 Blade Runner
1986 Legend
1987 Someone to Watch Over Me
1989 Black Rain
1991 Thelma & Louise
1992 1492: Conquest of Paradise
1996 White Squall
1997 G.I. Jane
2000 Gladiator
2001 Hannibal
2001 Black Hawk Down
2003 Matchstick Men
2005 Kingdom of Heaven
2006 A Good Year
2007 American Gangster
2008 Body of Lies
2010 Robin Hood

or

Peter Jackson:

1987 Bad Taste
1989 Meet the Feebles
1992 Braindead (released in North America as Dead Alive)
1994 Heavenly Creatures
1995 Forgotten Silver (Documentary)
1996 The Frighteners
2001 The Lord of the Rings: The Fellowship of the Ring
2002 The Lord of the Rings: The Two Towers
2003 The Lord of the Rings: The Return of the King
2005 King Kong
2009 The Lovely Bones

[~ViperSB1~]

I would say the team of Peter Jackson, Fran Walsh, and Phillipa Boyens!

[~ViperSB1~]

JJ Abrahams or Del Toro would do interesting versions of Avatar. You can hardly argue that films like Pan's Laberinth or the latest Star Trek were bad films.

To me the new "Star Trek" was a very bad film, except for Zoe of course.

[bill smauz]

My favorite directors include:
James Cameron, Steven Speilburg, Peter Jackson, and Ridley Scott. But probably more so Peter Jackson and Ridley Scott because I like their character development.
As long as it is one of them directing, I am fine but I'd prefer James Cameron since he knows what his fans want.

[Aaron Newbury]

george lucas

[Akutan]

My pick would be either Peter Jackson or Spielberg