What will come of the Harry Potter Leixcon that RDR Books wants to publish and JK Rowling's suit against the publisher and author Steven Vander Ark? It's a summary of the characters and events in the seven books Rowling wrote.
The issue is Rowling's copyright. Rowling and her publisher argue that her copyright prevents derivative works, such as the Lexicon. Vander Ark claims that Rowling's failure to issue a DMCA takedown notice is a waiver of her copyright. I've written about it before, and postulated that eventually the Lexicon will win.
The problem comes from that one word: eventually.
The judge hearing the case has urged the parties to settle the case because it addresses areas of American law that are not yet settled, which would cause years of appeals and further litigation.
In other words, it would be less expensive for the parties to settle and avoid years of litigation.