Cameron announced the release of a special collector's edition disc to Avatar's 33 million Facebook fans earlier today (August 14). Watch Cameron's video message below:
In a separate statement, the filmmaker hailed 3D TV as "the future of home entertainment".
"I'm a huge proponent of the technology and very pleased that Avatar can be viewed in the living room the way it is meant to be seen," he said.
"This is the only way fans should experience the world of Pandora and this release offers the highest picture quality possible."
Avatar is the highest-grossing movie of all time with worldwide box office takings of more than $2.7 billion.
Sequels Avatar 2, 3 and 4 will reportedly shoot simultaneously, with the first opening in cinemas in 2015 at the earliest.
In addition to Avatar, 20th Century Fox Home Entertainment will release Cameron's Titanic on Blu-ray 3D on September 10.