"Black Panther is the lynchpin character of New Avengers. The central character. He's very important to the Avengers franchise as a whole." - Tom Brevoort
"Black Panther is certainly the moral center of New Avengers." - Jonathan Hickman
"Avengers is the day book and New Avengers is night. Avengers is how we want the world to be, New Avengers is how it is. One book is about life, one is about death. The logos reflect all this." - Jonathan Hickman
"Do Black Panther and Namor get along? No. Do Namor and Beast get along? No. Do Iron Man and various characters have problems as things get revealed? Absolutely." - Jonathan Hickman
"I don't think people will be surprised to learn that even as these guys go about their job, some will grow to hate one another. This is not a cheery happy story. This is the 'Death Avengers.'" - Jonathan Hickman
Jonathan says he has been dropping New Avengers hints in Fantastic Four and FF with Black Panther, Black Bolt and Reed Richards stuff.
Captain America, Iron Man, Doctor Strange, Black Bolt, Namor, Black Panther, Mr. Fantastic and Beast so far, with more possibly.