I hope Ayanokouji Ayano gets at least a cameo somewhere in the first season. I wouldn't want Ayano to end up like poor Kurona Mei from Gabriel Dropout, the first of the next wave of demon girls in the manga from beyond where the anime left off who only ever got a voiced appearance on a drama CD.
Another thing, I thought I remembered that someone was cast for Ayano but, while "Ayane" features prominently in the cast announcements, it's the voice actress Ayane Sakura (who I know best as Natsumi Koshigaya from Non Non Biyori) as Lily Amane. That has to be what I'm misremembering.