Never play poker with Kevin Feige.
That man could be standing in front of the actual Captain America answering hard questions and never give up anything. I just saw him, and he never let on even slightly that they were close to dropping news of this magnitude. While the Russos have been dropping some clues about how important "Captain America 3" would end up being to the overall Marvel Cinematic Universe, they really didn't prepare people for the news that broke tonight.
Robert Downey Jr., who so carefully clarified last week that he is not going to be making "Iron Man 4," was studiously avoiding the real news that was brewing the entire time, and now Variety has the story that Downey is going to join "Captain America 3," which will most likely be officially subtitled, "Civil War."
And if that's exciting to you, that's because you have some idea of just how serious the ramifications are for all of the Marvel characters that we've met so far.