Here’s hoping Rick Grimes has a good retirement plan. During a conference call with Wall Street analysts on Thursday, AMC CEO Josh Sapan hinted that the The Walking Dead could stay on the air for years — if not decades. “The use of the word ‘franchise,’ we don’t take lightly,” the exec said, per our sister site Deadline. “It’s not a sloppy or casual word. We’ve studied the best. Some have been around 30, 40, 50 years. We have a chance for a lot of life in the franchise.” (UPDATE: An AMC insider stresses that Sapan was referring to the...