Don’t believe everything you read on the internet equivilant of those supermarket tabloid rags. Miley Cyrus and her dad are perfectly happy serving out the end of their sentence on Disney’s Hannah Montana. Sure, she could make more money in film or music. But what do you know, Disney just happens to be leaders in both those markets.
The Cyrus family knows where their bread is buttered. I’m sure they’ll stick with Disney for at least another few years before they decide to pull a Hillary Duff and jump ship. But, even Hillary has come back to the Mouse House for part of her career. Once Mickey sinks his claws into you, escape is not really possible.