Like Part 1 did back in February, Part 2 has also topped the Bookscan charts.
http://multiverse-magazine.com/2012/06/avatar-the-last-airbender/#more-3753
It also topped the New York Times Bestseller list last week.
So Avatar Comics continue to sell extremely well, Part 3 will most likely follow suit and we know that there are more comics planned for after the Promise so the future of Avatar comics looks very good
The Promise Part 3 is out September 26th in comics stores and October 9th in book stores and from Amazon.