When does Sal & Gabi Break the Universe return?

Sal and Gabi Break the Universe is a science fiction novel that is also about Cuban mythology. Main characters include the titular Sal Vidón, Gabi Reál. Sal is a fun-loving magician who can reach into other universes. After the book's release, the editor of "Rick Riordan Presents", Rick Riordan, dressed up as Colonial, Greco-Roman, purple wizard, and steampunk version of himself.