Marvel announced Samuel Jackson signed a 9 picture deal to return to his role as S.H.I.E.L.D. agent Nick Fury. The upcoming slate of Marvel films will contain Nick Fury in some capacity, starting with Iron Man 2, Thor, Captain America, The Avengers, any of their sequels, and a possible S.H.I.E.L.D. spin-off movie.
Samuel Jackson first appeared as Nick Fury at the end of the credits of Iron Man to tell Tony Stark about a team called the Avengers. Immediately after that, a nerdgasm was heard 'round the world.