Recently S. D. Smith announced he has returned to the Forge to begin writing his next book. In book 4 two (one isn't written) in canon books are mentioned. I'm wondering if either of them might be the next book.
The Pilgrim origin – "If someone were to ever tell of his journey, now that would make for some amazing tales." – Emma
The Rise and Fall of King Jupiter the Great by Whittle Longtreader
If you have any other theories feel free to mention them.
Shalom,
Smalls (Now Smalden Ender Preybane)
Whatever he writes I can't wait to read it