Jonathan Hickman is bringing back that nefarious group of self righteous "do-gooders" known as the Illuminati to his New Avengers with a new member -- Black Panther.
Black Panther previously turned down an offer to sell his soul (it's the Illuminati!) when previously asked, but now something causes the leader of Wakanda to change his mind.
Hickman doesn't reveal any details at Marvel.com but does offer the following, in addition to a preview of the issue.
The reason that we start in Wakanda is because something happens there that is actually a catalyst for Black Panther to reassess his long held position on the Illuminati being a very very bad idea. If you remember the first Illuminati [story] that Brian [Michael Bendis] did a couple of years ago, Black Panther was the only one that walked away from the table and said, “I don’t want any part of this.” And something happens that is significant enough that causes him to rethink that.