Once Erin and her publishers are done promoting the newer books - in my guess very soon.
April 5th, 2011
It will come out April 5 2011.
The book that follows "The Sign of the Moon" in the Warriors series is "The Forgotten Warrior." It is the fifth book in the Omen of the Stars arc.
Omen of the Stars Book 5: The Forgotten Warrior comes after Sign of the Moon in the Warriors series.
Warriors - Sign of the Moon is a fictional narrative intended primarily for entertainment. It does not have a clear "message" outside of the story.
April 5th 2011
Hardcover: 352
Sign of the Moon
The books that have come out prior to 2011 are as follows: The Fourth Apprentice Fading Echos and Night Whispers The next book to come out is: Sign of the Moon
Dovepaw and Ivypaw will become warriors in the book "The Last Hope," which is the final book in the Omen of the Stars series in the Warriors series by Erin Hunter.
It will be released April 11,2010.
I'M Pretty sure it is Stoneteller from the tribe of rushing waters.