User blog comment:B214/High School DxD Hero Discussion/@comment-3965848-20180425100923/@comment-30924344-20180425104927

The Fun Gremory Family was referenced so we won't see it in a flashback. Grayfia will appear in the anime so I'm thinking that maybe the part from the SS where she visits Rias on her day off and the love story between her and Sirzechs, will be said. Or if she does not appear at all in the second half, then that can only mean The Fun Gremory Family will be animated as an OVA.

I would love to see Armageddon at Sports Day! animated to see Gabriel so early on!