There will probably be an ELANTRIS sequel eventually. My writing time has been dominated lately by other projects but I do intend to get back to Arelon and tell more of that world’s story. The second book will probably take place ten years after the first one, and deal with some of the side characters from the first book becoming main characters. We shall see. It will still be a little while before I’ll be able to write it.
I have written other stories set on Sel, the world of Elantris. The Emperor’s Soul, which won the Hugo award in 2013, and a short story called The Hope of Elantris. You can find them both in the Arcanum Unbounded anthology of Cosmere short fiction.