I LOVE Avatar. But I think toys based on this live action is unlikely and unnecessary. There's been many toy lines already, and while they were all good and bad in their own ways, I think most companies would be reluctant to try AGAIN. There's been a lot of options for people to get their Avatar fix.
We've had:
-Animated Mattel 5" line
-Spinmaster 4" movie line
-DST 7" animated line
-McFarlane 7" animated (but with realistic textures) line
-McFarlane 5ish" animated (but with realistic textures) line
-BST AXN 4ish" linch animated line