Analysis of information sources in references of the Wikipedia article "Safehold" in English language version.
David is currently anticipating that the Safehold series will be a minimum of nine books. And, he is currently planning for the humans of Safehold to run back into the Gbaba at some point...but that's all the details I could squeeze out of him!
And, for that matter, I should probably admit that one reason—subconsciously—that I did it may have been that the voice-activated software I use can differentiate between Nimue and Naimu cleanly and easily, which is not the case where many of the other alternatively spelled names that I've assigned in this series are concerned.