According to Comic Book Movie on March 23, during an interview with Chris Evans about "Captain America: The Winter Soldier", the actor may have revealed a plot detail in "Avengers: Age of Ultron". The possible revelation seemed to indicate a prop regarding the super soldier's historical military attire. Apparently, a jacket appears for a moment at the beginning of the film sequel when Steve Rogers is seen wandering the present day Smithsonian Museum which had dedicated an exhibit in his name.
'They were great jackets” he says enthusiastically. "I loved the fit and the look. One of them may even have come home with me".
Evans then articulated that he was sized up for a period jacket for "Avengers 2" and then had a look of angst upon him thinking he may have just let the cat out of the bag in regards to that portion of the film. When he was asked about returning to his past in Joss Whedon's film, his coy reply was, "Maybe".
Of course, one may think that the jacket may be manufactured for him only because his character prefers the vintage style in modern day society or it could be speculated he could encounter the past yet again. Flashbacks are always not uncommon in films, so it could be just that.
"Captain America: The Winter Soldier" opens in theaters April 4.