There is a Mickey Mouse film in development, with Goofy and Donald costarring. It hasn't gotten the green light yet (animation green lights are tougher than live action), but it is being kicked around.
As for kids not knowing who Mickey Mouse is, considering he's been in several TV shows since 1999, with his current show, Mickey Mouse Clubhouse being on the air since 2006, I seriously doubt that. He's also had several direct-to-video features in the last decade. Mickey isn't going anywhere.
Don't believe everything on the Interwebz! A duck's quack DOES echo!