9. Captain America 3
It's difficult to speculate given that we don't have a clue what The Winter Soldier might hold yet, as it hasn't even started shooting (we need those low-res set-pics!), but here's a couple of sure things: Captain America and Black Widow will work through a lot of the film as a team; though she will only cameo in The Winter Soldier, expect her and Cap's partnership to be given a greater due in The Avengers 2, leading to her having a far more expanded role here. Also expect not only Widow, but Nick Fury, Falcon and Hawkeye to all have meaty roles here; as Hawkeye might have reduced screen time in The Avengers 2, him helping Cap and Widow would be the perfect way to develop his character some more.