User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-50.98.199.110-20130227043310/@comment-6173487-20130228180558

I think we will. Rick Riordan left the whole subject of her really open. I think all the villians we have heard from so far will make an appearance for the last final big battle. When the demigods defeat Gaia's army, Khione will be in mega trouble with the Gods and be punished.