It's highly unlikely that we'll ever get confirmation from DirecTV when their AMC contract expires. Keeping that information confidential is a competitive advantage, consider Dish customers switching for example.
In my experience, unless they promote it as an onging dispute (like Dish did recently with AMC), carriers essentially never disclose contractual status.
My thoughts, and the fact we just got AMC HD.
Overall Im more happy with Directv than Dish, so here is my solution to programming disputes and not missing the shows I really really like
http://www.amazon.com/dp/B007I5JT4S/?tag=satell01-20