This seems to be a recurring question in the comments so I will answer it here.
The Rain Wilds Chronicles was written as a single manuscript, and then divided into two volumes for publication. Dragon Keeper and Dragon Haven are those two books.
My next published book will be a collection of stories featuring shorter works by both Robin Hobb and Megan Lindholm.
The untitled book I am working on now picks up the tale of the Tarman expedition in search of Kelsingra. It’s my work in progress and threatens to be a long book!
I hope that answers the question. And thanks to everyone who asked.