Well, time-wise, it's The Last Hope. But Erin is writing a new series called Dawn of the Clans, that is set before the Clans started. The first book, The Sun Trail, has already been released, but the second book, Thunder Rising, hasn't yet come out.
"The Last Hope", Firestar is on the cover (i think) The blurb is on Warriors Wiki.
no
Last Hope.
Either The Forgotten Warrior or The Last Hope
The Last Hope - Warriors - was created on 2012-03-21.
The book after the forgotten warrior is the last hope.
"My Last Year" is not the title of the book. The book title is not confirmed yet.
The Book of Revelation
The title of the last book is the final chapter.
The Sight is the first book in the Warriors: Power of Three series. The book that comes before it is Sunset, which is the last book in the Warriors: The New Prophecy Series.
Because we do not know what the last warriors book will be, it is impossible to know when it will come out. Although, if you mean the last book in the Omen of the Stars, that is coming out on April 2nd, 2012. For the series Warriors, the New Prophecy, and Power of Three, those are already out. Erin Hunter has concluded they will make a 5th series
Probably the last book of Omen of the Stars