OMG! TWD did AMAZING in the ratings! There is no way AMC won't order a season 3 right now!
Unless the actors and production staff get greedy.
They have no say on how much money they make. AMC has all the power.
The only one being greedy is AMC. They slashed the budget for seasson two even though the show was getting ridiculously high ratings in season one and even fired the original showrunner.