Possible spoiler warning as I’m not sure if this article is legit or not. According to eonline.com there will be a new character named Burton in season 5 who is a teenager and he’s missing a leg. The part with him missing a leg makes us think that that may have to do with the Terminus people, if they actually are cannibals.

Our gang may have been in a tight-spot when we last left them, but Rick and Co. are going to be recruiting as many people as possible in order to get revenge on those man-eating freaks who run Terminus. One of the allies we’re most excited to meet is 17-year-old Burton. He may be young, but he’s already suffered great tragedy when lost his leg. Luckily Burton does not let his disability keep him down, and his positivity is infectious to everyone else around him.
Source: eonline.com