Rumours on
Book five
Book Six
Book seven
Other Rumours
Book five Rumours
May be titled "Harry Potter and the Order of the Phoenix.
Some say that the "ORDER OF THE PHOENIX" is like a pink slip, Dumbledore is fired, but Fudge soon realises his huge mistake and rehires him.
James Potter's father was wealthy (he inherited much of the money and Invisibility Cloak from him) so he and Lily didn't have to have the top jobs to survive.
Meet Harry's grandparents?
This time there will be a FEMALE DADA (DEFENSE AGAINST DARK ARTS) TEACHER. This most likely won't be Fleur, but she will be taking up a position at Hogwarts.
A character (female) by the name of Icicle is rumored to play a big part in this book.
Snape's mysterious task is linked with the "personal risk" he took when he turned back to spy for the good guys.
Hagrid and Madam Maxime go up North to compromise with the giants.
As long as Harry's in his relation's care, he will be safe- we'll find out the reason Harry has to go back to the Dursley's every summer!!
Ginny will play a significant role in this book.
Someone will discover they have powers they never knew of before.
You'll be very suprised who the new Quidditch captain for Gryffindor is! (obvious not Harry now....)
Harry and Hermione may date!
Professor Remus Lupin and Sirius Black are back!!
Snape and Sirius may become friends?
Harry's in his 5th year (duh) and is 15 years old.
Hermione will probably be made prefect (who else?!)
We'll learn more bout Lily Potter, her background etc.
Learn bout Harry's riches (how they came 2 be) and perhaps what his parents jobs were.

Book Six Rumours
Very possible that Sirius Black's name is cleared and Harry get's to live with him (adopted!) either in this one or the 7th one.
Harry's green eyes (from his muggleborn mother) are very important in either this book or number 7.
We (or Harry) learns something big about Snape!
Snape may finally get the job he's chased after, the DefenseAgainst Dark Arts position.
Harry's 16 years old.
Salem Witches Institute(of the US) plays a big part by protecting Beauxbatons and Hogwarts from evil.
Harry and Cho have a chance to go out, but that relationship won't last.
Peter Pettigrew returns..
More info on Harry's parents is revealed.
Titled "Harry Potter and the Green Flame Torch" - a torch that destroys evil and heals good. The Green flame is supposed to be related to Harry's green eyes. I'm not trusting this rumor because too much info is out, so I doubt this is the 6th book!

Book Seven Rumours
Very possible that Sirius Black's name is cleared and Harry get's to live w/him (adopted!) either in this one or the 6th one. Most likely in this book, this will happen.
Harry's green eyes (from his muggleborn mother) are very important in either this book or number 6.
Trewlawney's first prediction will be told.
Two marriages will occur!!
We find out why Voldie wanted to kill Harry so much.
Harry, nor anyone else will kill Voldemort- instead he will die because of his own fault. (Harry a killer? no....)
Harry's 17 and in his last year! (aw..no more Harry books...?)
Snape might fall in love. (eeww...)
Hermione'll prolly be Head Girl (again, who else?!)
Huge revelation about Lily Potter!
A major character may die...
JK Rowling says, "Magic can't bring dead people back to life," so, Lily and James won't be here in "living form"
May learn bout Harry's grandparents (this should be interesting)
Lupin plays a big role in this one.
Answer to the question "What makes some witches/wizards become ghosts after they die and some not?" will be answered
here.
JK Rowling says "You don't really find that out until Book VII, but I can say that the happiest people do not become ghosts. As you might guess Moaning Myrtle!"
Harry and Malfoy set aside their differences and fight against an evil force (Draco not following his dad's footsteps???)

Other Rumours
The Mirror of Erised's Message, if you read it backwards(easier to firgure out if it's all one word.) says The mirror of Desire
Dumbledore is 150 years old and Prof. McGonagall is 70 years old. (not sure)
Remember that look of triumph in Dumbledore's eyes when he heard that Voldie took some of Harry's blood? A few people say that since Harry is mortal and Voldemort now has Harry's blood running through him, Voldemort is mortal- he can be destroyed!
Harry won't be tempted to the dark side.
Harry's mom's wand (Nice for charm work) is important to the plot of future books.
The Sorting Hat does more than just make up a song every year...more info will be revealed!
Major characters will die in the next few books (including a "special fan of Harry's"- Colin Creevey?! Dobby?!)
Ron may briefly turn to the Dark side (seen/noticed a change in his attitude- a lot of bitterness...) one reason because of attention- though bad attention is never good. (in Book 4- he's always shadowed by Harry and Hermione) But will come back.
In the end of book 4 Dumbledore said that Lupin should get Arabella Figg or something like that, Anyway isn't there a Mrs. Figg that watches Harry? Maybe she is a wizard that looks after him. She has a lot of cats, maybe this is a sign that she is an animagi that turns into a cat.(Crookshanks?)-Cal Warrior
Harry's parents lived in "Godric's Hollow". First name of the Gryffindor founder is "Godric"... Harry pulled out Godric's sword from the Sorting Hat in the chamber of secrets ("Only a true Gryffindor could do that") Harry's father also had an inheritance... from maybe Godric Gryffindor. Maybe Harry is the true heir of Godric Gryffindor! (good reason why Voldemort would want to only kill him and his father)Harry's wand also sparked red and gold when he was in ollivanders.
Neville is said to become a teacher at Hogwarts (?!) :cough:er...probably a very clumsy one :cough:
If Neville does become a teacher, it's very likely he will teach Herbology, since that's his best subject!
Dumbledore might die! (oh no! he's so kewl, tho!) Harry did notice how old he was gettin in the fourth book...
JK Rowling says: "In Hogwarts there's a magical quill which detects the birth of a magical child, and writes his or her name down in a large parchment book. Every year Professor McGonagall checks the book, and sends owls to the people who are turning eleven!"
"Um, i'm not sure wut book this this rumor is sposed to be in: One of the Weasley twins will die, i think it was said that it would be George Weasley. Actually i though this was sposed to happen in the 4th book, but now i think it might be in the 6th book.
One of the people in Harry's year will become a teacher. A lot of people have said it's supposed to be Neville Longbottom. (neville supposedly means clumsy teacher, or sumthing, i have to check up on that)The last word is scar. Draco and Harry are sposed to team up to fight against some evil force or something."
NOT REALLY RUMOURS, J.K ROWLING QUOTED THESE!!