User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-108.35.35.98-20121104154601/@comment-5562903-20121107213243

As MoA was all Greek, we can expect HoH all Roman. Maybe there will be 4 POVs (with either Reyna or Nico POV, both would be awesome) like MoA, but for now we can assume HoH will have Jason, Hazel and Frank POVs.