User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-36663391-20190118224842/@comment-10330822-20190119095715

I agree, the last volume is clearly signaling that Bina is on the way out. Meaning the Queen spot will be open for Ingvild. Still, I feel the issue here is that even if she has Vali potential, she doesn't have Vali's training. She's still pretty new to all over this, even if she's incredibly OP and would be a huge help to Issei, Fafnir, and Bova's fighting strength.

I wonder if it would be a smarter move to take Rias on as Queen. That is, if that is even possible still.