If they do, it will be years from now. They can't even begin planning to make that movie until after they release a movie of The Last Olympian, which, if it comes out, won't be until at least 2015.
You can research Heroes of Olympus by going to Google.com and typing in, "Heroes of Olympus".
Fortunately, yes. There are going to be 5
October 2012
The Final Decision
Blood Of Olympus is the name of the 5th and rumored final book to the series of "The Heroes Of Olympus"
there will be 5 books in the heroes of Olympus
The series that comes after the Heroes of Olympus is called "The Trials of Apollo."
Heroes of Olympus
There is no book called heroes if Olympus that is the book series name
There is no book called heroes if Olympus that is the book series name
The series that comes after Heroes of Olympus is called "The Trials of Apollo."
The series that comes after the Heroes of Olympus is called "The Trials of Apollo."