Yes they are :D
Yes
To be honest their will not be a book 4 of avatar the last airbender though nick staff is maybe going to make a avatar based cartoon.
no it is done i wish they would but i doubt but i hope they couldrelease a epilogue like a couple weeks months or years after
Yes, They're are going to be releasing book 2 sometime maybe Late 2010 or Early 2011, because at the end of the movie they only ended it with Book 1 with was Water. The Next Book Will Be Earth. So Yes They Will Be Releasing It Sometime
Yes live action and next year summer I think
No it will not be a PS3 game, but available only for other platforms and the iPhone.
God I hope not. That "The Last Airbender" movie basically ruined how great the show was. It was making a poor mockery of it. If they do that to Naruto, it will likely suck just as bad.
To the show: No. It was completed in 2008. To the Movie: Yes. They are going to make a three movie trilogy.
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M Night Shyamalan, director and producer of the first, has announced that he will begin a second, but due to the firsts extremely poor critical reception it may not go ahead as initially planned.
If they do continue the series that far, the one after Korra would be Earth, the cycle isWaterEarthFireAirhence the entrance monologue
Yes. In 2011, a mini series called Avatar: the Legend of Korra will be released on Nickelodeon, about the Avatar after Aang.