They'll have to develop new nemesis and story-lines fairly quickly as the walking dead themselves don't present viable or even interesting long term antagonists, but they'll suffice for the first half of this season.
The first half of the season doesn't give them much time, the season's only 6 episodes long.
6 episodes for an entire season.........???![]()
That's truly pathetic. I thought the 12 episode Dexter seasons were ridiculously short.
Don't forget, this show is a pretty big risk. There hasn't really been a show quite like this before, so there was no way to predict how the ratings would turn out. AMC made the decision to give it a short season, only spending half the budget on it, then giving it full 13 episode seasons once the show's audience has been found.