OK guys, based on everything I know or think I know, the following is what I think might happen:
[*] Lee will die at the end of Season 1, only after saving Clem
[*] Molly will return to help Lee save Clem, and then, because she is the daughter/sister of the woman who got pregnant in Crawford, will take Clem under her wing (that's the reason she gave the Doc such a kick in without killing him)
[*] Ben will save Clem and redeem himself, just before he dies.
[*] Kenny will have the chance to save Ben, and refuse.
[*] Christa is obviously pregnant and something will come of that. Perhaps a miscarriage causing Omid to do himself in.
[*] Kenny will, in the end, suffer death.
[*] Glenn will come back and be the central character for Season 2
Granted i'm probably way off with some of these predictions. The ones I'm most sure of are Ben dying with Kenny watching without helping, Molly returning, and Christa's arc.
I'm less sure of Lee's fate, simply because we've seen in Walking Dead lore, that a "scratch" is not always the same as a bite. The zombie's teeth/nails may have caused the scratch, and as such, not transferred any "virus". They are keeping their options open.
As for the others..Lilly will no doubt turn up, but I can't see that lasting long. Vernon will be dead, along with the others. The guy on the end of the Walkie Talkie...now that's interesting. I can't see them having a complete stranger as the big bad, but I could be wrong.