Marvel just wrapped up its big SDCC panel, which Iron Man 3 headlined but which also served to deliver other MCU news and footage. The big reveals included the official titles of Captain America 2 (Captain America: The Winter Soldier) and Thor 2 (Thor: The Dark World); plus, Guardians of the Galaxy was confirmed as a 2014 movie and Ant-Man test footage was shown.
No Black Widow or Hawkeye-specific news, unfortunately, but remember there is
that Cap2 spec we talked about a few weeks ago, which seemed very positive for the good ship Clint/Natasha. Based on the subtitle for Cap2 alone, we know these guys were right about at least one thing, so fingers crossed! :)