Yes, there will be a fifth warriors series. The series will be entitled Dawn Of The Clans and that it will be about the early warrior clans. (HarperCollins' website confirms the title of the series, and Erin Hunter has confirmed on the Warriors Forums what the series will be about.) More information will be released within the next several months.
Currently there is no 5th series. warriors only goes up to a 4th series, but there are rumors that Erin Hunter will be making a 5th series.
A Dangerous Path
As far as we know, there will not be a 6th warriors series. The New Reign is actually just a rumor for the title of the 5th series of warriors books, which was confirmed by Vicky in an online to be false.
A Dangerous Path.
As of now, there has been no announcement about a 5th series in the Warriors book series. However, the authors have continued to expand the Warriors world with various additional books, novellas, and graphic novels. It is possible that a 5th series may be released in the future, but there is no official confirmation yet.
The first series is just the Warriors series. It starts with Into the Wild.
'The Warriors' series of books are written by Erin Hunter.
In the Warriors series, the4th apprentice will be the first book of the 4th series.
Hollypaw's warrior name is Hollyleaf in the Warriors series.
Warriors: Omen of the Stars, is the title of the fourth series of warriors.
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
No, an alternate generation is not a real warriors series. But I can make sure for you.