User blog comment:B214/Question and Answers/@comment-16075832-20130718154321

Since God is deade in High School DxD, and Kiba and Xenovia have some of the strongest legendary Demonic and Holy Swords respectively in existence, do you guys think that it's possible that powerful non-Sword of Betrayer Holy-Demonic Swords will appear? I think it would interesting since as of now, not many swordsmen may be able to stand up to the two of them. There's still Arthur and Kiba's mentor, but I really hope they encounter another Siegfried like character. His appearance in Volume 9 (along with the rest of the Hero Faction) was just awesome.