Captain America Civil War: 10 Implications For Infinity War
8. Helmut Zemo Will Return
Helmut Zemo ended being one of the MCU's most compelling villains to date, aided by a reliably strong performance from Daniel Bruhl. Thankfully, Zemo wasn't killed at the end of the film, but rather brought to justice by Black Panther, so it seems likely that he'll be returning in some capacity for Infinity War.
Bruhl has already suggested that Marvel Studios are planning to use him for future films, so why not make him a peripheral villain alongside Thanos (but not working for him)? There are a ton of compelling directions in which the character could go with his continued quest for vengeance against The Avengers, rather than just languishing around in jail forever more.
Considering that most of the flagship MCU movies have at least one or two side villains, Zemo would fit the bill perfectly.