I don't know what roles you're going for; every department/manager asks different stuff. But, for what it's worth:
- What Disney character is most like you?
- 3 words you/your manager/your coworkers would use to describe yourself?
- Why do you want to work at WDW Resort?
- And then the scenario questions..."What would you do if..." It's the past 20-some years of your life that'll prepare you for those, nothing you can study...
In my experience, there's no magical Disney interview questions...just know what you've done, what you're good at, what you want to do, and you should be fine.
Nick