Doesn't it seem like Miley Cyrus already has moved on from "Hannah Montana?" The show could be on its way out. A Disney Channel executive tells the New York Post "Hannah Montana" probably will shut down for good after filming its fourth season. But, he says "you never know in this business." And, a Disney spokeswoman confirms those comments but won't say anything more. Production on season four is expected to begin later this month. Those episodes will start airing in late spring and continue through next year. The Post reports that the fourth season will reflect the real-life struggle Cyrus is having about saying goodbye to the character that made her famous. The Disney Channel is just airing the third season now. The third season finale will air in March as a one-hour episode. That's when the character of Miley Stewart will decide if she wants to continue being popstar Hannah Montana in disguise or just be a regular girl.