VIDEO : ?Avengers 4? Writers Tease Expanded Roles For Certain Characters

Christopher Markus and Stephen McFeely, the screenwriters of the fourth 'Avengers' movie, are promising that big things are in store for Chris Evans' Captain America and Scarlett Johansson's Black Widow. As with just about everything related to 'Avengers 4', what exactly these "bigger roles" will entail for Captain America and Black Widow remains anyone's guess.