Board Thread:Questions and Answers/@comment-217.55.64.90-20150327010210/@comment-14267015-20150327010905

von Strucker has to if only because of his appearance in the Winter Soldier end credits scene. Fighting Hydra is supposed to be the focus of the beginning of the movie. I don't know who added Thanos but I wouldn't rule out the possibility of another end credits scene with him in it.