Seven years is an eternity in the entertainment business, and that’s just how long it’s been since James Cameron’s Avatar arrived on the scene and did some rather boffo box office (as in biggest box office in movie history). But a lot has changed since then, movies come and go, and the public consciousness is fleeting. Still, Cameron is pressing on with four planned sequels, and now we have more news of Disney involvement. Pandora — The World of Avatar is opening next summer at Disney’s Animal Kingdom at Walt Disney World in Florida. No specific date has been announced yet.According to io9.com, Pandora has been in the works for over five years, and it took three years just to ramp up construction. When your project concerns a Disney theme park, it’s understood that you are getting into a massive undertaking.Walt Disney Parks and Resorts Chairman Bob Chapek spilled the news at D23’s Destination D, also sharing concept artwork and park details. For example, the main restaurant will be called “Satu’li Canteen, with a focus on Na’vi art and cultural items,” and there’s also something called Pongu Pongu, which is a “special drink location.” Just roll with it for now; it’s…