Look for "Spider Bight" sometime in October, and "Porpoiseful Intent" in November. (I'll update when I get the actual release dates.)
Yes, "Spider Bight" is the long-awaited next chapter in the story of Emi, Aaron, Caph, and Ford, the crew of the Tamora Bight. If you missed the first two books in the series, they are:
Both available from Siren-BookStrand as e-book and in print.