What if Lily ended up joining Carver's group after she left. Kenny did say there was little gas in the camper left.You also can mention her to Alvin when he asks if anybody she knew ever did what Nick did. Lily is a professional in the Military so she might have joined Carver's group with Troy and the others. You could end up meeting her again and Clem questions her why she killed Carly/Doug. You could have a choice to forgive her or not. I don't know do you think Lily will return for season 2?