This discussion may contain spoilers!
I think it'll be like the ending of episode 5 of season 1 where Clementine needs to kill Lee, then she would need to do the same with whoever is with her at the end. Credits roll and you can see Clem after the credits walking and sees a small camp in the distance which is where Christa wanted to go, Welltangon or however you spell it. She stares out at it and a voice comes from behind Clem, it's Christa, Clem runs to her and hugs. Screen fades to black with them walking towards the camp.