User blog comment:Xhatefate/DxD Updates~/@comment-25136646-20140711164200/@comment-25136646-20140711170849

You're right. I hope all the Longinus possessors will come together. Also, have you noticed the Longinus possessors of this era are young? Tobio seems to be in his thirties but Issei, Vali, Cao Cao, Georg, Leonardo, Dulio, Valerie, Walburga, Sairaorg and maybe Gasper (since his Sacred Gear might become a Longinus) are still Young. Azazel said that the Longinus of this era are quite different for unknown reasons. If they come up together, they'll surpass the former Longinus possessors.

About 666, what do you think will be his reason to team up with Qlippoth? Maybe 666 enjoys destruction so that might be the reason why God sealed him away because, unlike Great Red, 666 tried to destroy the world. We must Wonder how many volumes are left before 666 appears.

Tiamat is the only Dragon King left in the series so she'll appear. I have a theory. Crom Cruach has become as powerful as a Heaavenly Dragon so he might be fighting a God later in the series. What if Tiamat has surpassed the class of Dragon King? Azazel did mentioned she was rampaging around the world. What if she was doing the same kind of training as Crom Cruach? She might become equal to the Evil Dragons. Also, it is revealed that Tiamat is derived from the goddess Tiamat of Mesopotimian mythology. Could she be the same Tiamat?

I hope we see the remaining three Evil Dragons. It is confirmed Yamata no Orochi will appear. He ws killed by the Japanese God Susanoo but he seems to have been revived. We might see characters from Japanese mythhology.