The Walking Dead Comics
Telltale Games promised us that we will see characters from comics in The Walking Dead Season Two. It can be only Magna's group from issue 127 because other live persons are in Washington at that time. We don't know anything about they,so the game can be a prologue of the new comics arc. Also,silhouettes on Episode 4 slide and members of Magna's group are similar:
Sorry If I made a mistakes, I am from Russia and I don't know English ideally.