As you probably already know, the new Relief Society/Priesthood manual for next year in the Teachings of the Presidents of the Church series is Joseph Smith.
It is already available online for free in PDF format for anyone interested:
Teachings of the Presidents of the Church: Joseph Smith (6.34 MB)
At 610 pages, it is the longest volume in the series so far, surpassing the Brigham Young book (385 pages) and the Joseph F. Smith book (481 pages) by over a hundred pages. However, the 610 pages are divided among 47 lessons, which is actually one lesson fewer than the other two manuals (as if it weren’t already difficult enough to cover the lesson material in a single class period!). It will be the curriculum for the the next two years.

