It's then revealed that the "Iron Legion" will appear in Avengers: Age of Ultron, although that may not be what they are called in the film. "Tony Stark/Iron Man has created an army of Iron Man 'drones' (much like he utilized at the end of Iron Man 3) and uses them to 'keep the peace.' The Avengers are not in hiding or attempting to keep a low profile. They are very public and 'out' about their intention of keeping the world safe, especially with the absence of S.H.I.E.L.D." As for costumes, Joblo further suggest thats "all (or most) of The Avengers will be rocking an Avengers logo on their costumes, courtesy of the upgrade to each superhero's duds, thanks to Stark," which we got a peek at when Chris Evans was seen costumed and filming in South Korea months ago. "Black Widow will have 2 batons that have shocking ability as part of her new arsenal and Hawkeye will indeed be rocking the long sleeve jacket that is reminiscent of his comics costume. Hulk will now be wearing "stretchy pants" that grow and shrink with him when he goes back and forth between Banner and Hulk."
As for The Vision, played by Paul Bettany, his costume is "said to retain the green/yellow color scheme, albeit with the usual Marvel Cinematic upgrade. Our source indicates that, much like Ultron, Vision is not expected to make his final, full reveal until the third act of the film. The how and why of that is wide open for discussion, but it makes sense. I wouldn't be surprised if Vision makes the "sacrifice play" for this one, but that's just my feeling."