Woah, . . . D23 is a convention, the planners can't ask Burbank to spend a ton of money on a new land just so they can have something to talk about. If there aren't any major new announcements, then it makes sense that they scale down this presentation, and focus on other stuff. No doubt D23 will have a big audience.
Apple products have a faster turnover rate. Who is using a 2006 MacBook? Yet guests enjoy rides built decades ago, like Pirates, Splash . . . theme park investments are expensive and take a longer amount of time to turn a profit.
2012 was an awesome year, Disney bought Star Wars and explicitly stated they are looking at ways to expand that franchise presence in the parks. It will be awesome to see Ratatouille open, and Shanghai Disneyland being built over the coming years, in addition to whatever ultimately happens in the Animal Kingdom. Theme parks are part of pop culture and have mass appeal . . . they aren't built to please the audience at D23.