Robert Jordan had repeatedly said that the main sequence would conclude with the twelfth book, with a working title of A Memory of Light. Numerous times, including most recently on ComicCon 2006, he said he would hold to this statement even if it has to be 1500 pages long. Before his death Jordan had planned to write two more short prequel novels, an encyclopedia, and possibly two or three other side-plot novels.
With Robert Jordan's death, on September 16, 2007 , the future of the series is in question. His cousin Wilson stated in Robert Jordan's blog that the story has gone into either word processor or audio, and that Jordan's wife Harriet and Wilson have now heard the entire story. They plan on publishing Memory of Light per Jordan's wishes.