I know this may sound out of nowhere, but hear me out, could Lee's Ex-wife, play a possible role in The Walking Dead video game, its just that there isn't much about her, which could make some interesting developments, like say Clem meets a woman out of nowhere and she meets her in this abandon building and asks what's your name, etc. She could say some things that could vaguely say she was once married to Lee Everett or a man she once cared about but couldn't make it work.
What do you think, it would still make Lee Everett more revelant again.