This is a crazy theory but stay with me on this. I think the Garcia family, Molly, (maybe Christa?), Kenny (if you stayed at Wellington or left him on the road), Bonnie, Mike, Arvo, some of the 400 days characters and this is a stretch but maybe the scrapped characters Asha and Jill. Considering they want to keep making more games this could be a new game idea.
What do you guys think? Who do you think lives in the Caravan?