Given its monstrous success, a sequel to James Cameron's Avatar will certainly happen, and it seems the talks have already started. According to The Hollywood Reporter, News Corp. chairman Rupert Murdoch said on an earnings conference call that "very early talks" have begun for an Avatar sequel.
It was said that director James Cameron, "has ideas for it," and Murdoch added that, "We will be pushing one." However, Murdoch also told those on the call not to, "hold your breath for another one," which could indicate that we may not see the sequel for quite some time.
The DVD and Blu-ray release was also discussed on the call and, while a specific release date wasn't given, Murdoch said that it will be released sometime during the company's fiscal year, which ends on June 30. It was also said that the DVD/BD release would not be in 3D, although News Corp. COO Chase Carey indicated that a 3D release could come, "further down the road."