My guess of this is that Lee will, naturally, die at the end of this because of his bite. I think Christa and Omid will maybe take Clementine with them, maybe Molly shows up and takes her and she becomes really good with Hilda, who knows?
But whatever the case, I figure season 2 will be like a few years or something in the future (or maybe not, maybe it's totally current time still) and you play as Clementine.
At the very least, I kinda HOPE this happens. Would be pretty cool.