User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-4430596-20130125174706

I think the 1st POV (released early as always), will probably be Jason. However, if Annabeth or someone unexpected like Reyna or Nico has one in the book, I think it will be the first, in order to build anticipation, like with the other books. What I mean is, we were excited for The Lost Hero after the Jason chapter release, because he was a new, exciting character. Same with The Son of Neptune, due to the return of Percy. It also happened with The Mark of Athena, because we were interested in what Annabeth's POV would be like.

While I think it unlikely, I think there is a possibility Nico could have a POV, due to the title. In the previous books, each title has had to do with a character that has been the main character of the book. (Lost Hero=Jason,Son of Neptune=Percy,Mark of Athena=Annabeth). The House of Hades makes me think Nico might be very imprtant, hence having a POV. Of course, the title could have to do with Hazel, or this book could end the pattern, or Nico could be important but not have a POV.