We’ve got a great piece of unused concept art for Captain America: Civil War that features a very different Baron Zemo than what we saw in the movie. The art was created by Marvel movie concept artist Andy Park, and as you can see, the design is much more inspired by the look of the character in the the comic books including his signature purple mask.
Personally, I liked how Zemo was presented in Civil War. The fact that he wasn’t wearing the costume made him a little bit more frightening because he just looked like a regular guy. You’d never know he was a villain. Who knows, though. Maybe somewhere down the line the character will return, and maybe next time he’ll be sporting this costume.
Source: MCU Facebook page