look i got all these roumers from this site which got them all from dif JKRowling interviews.
http://www.the-leaky-cauldron.org/
J.K. Rowling on the "Harry Potter Five"
What will happen in "Harry Potter and the Order of the Phoenix"?
• "In book 5, we go into a whole new area, physically, an area you've never seen before, a magical world" (1)
• "What's very important for me is when Dumbledore says that you have to choose between what is right and what is easy. This is the setup for the next three books. All of them are going to have to choose, because what is easy is often not right." (1)
• "You'll be seeing Mrs. [Arabella] Figg in book five, and you'll find out all about her." (2)
• Harry will see him [the real 'Mad-Eye' Moody] in book five. (2)
• Why do some wizards/witches become ghosts and others don't? "You will find out much more about that in book five." (3)
• There will be a female Defense Against The Dark Arts teacher. (3)
• "You see Lupin in Book Five. Yes you see a lot of old characters in Book Five." (4)
• Book five will be scary. Harry finds out a lot of things he hasn't stumbled across so far. (4)
• "The Dursleys are in the next book, and there's stuff coming with them that people might not expect." (5)
• "Ginny Weasley [little sister to Harry's best friend, Ron] will play more of a role in Book Five." (5)
• "In book five [Harry] has to examine exactly what death means, in even closer ways." (6)
• "Harry visits a few places that have been mentioned in the books, but we've never got inside before. He visits places other than Diagon Alley and Hogwarts." (7)
(1) Entertainment Weekly Interview, September 2000
(2) Barnesandnoble.com Chat, October 2000
(3) America Online Chat, October 2000
(4) BBC Interview, Fall 2000
(5) Philadelphia Inquirer Story, November 2000
(6) RadioCBC 'This Morning' Interview, October 2000
(7) BBC Newsround Interview, April 2001
The fact that she says they will have to choose between easy and right makes me think that the roumer that malfoy goes against his father might be true.