User blog comment:B214/High School DxD BorN Episode 10 Review/@comment-26476349-20150610035303/@comment-24502975-20150610180026

Issei asking Vali for help -> Most likely we're getting the Heavenly Dragon tag team

Maou Rangers SS -> It was confirmed elements of that SS (or was it the entire SS, GT's being a bitch on that) will appear in the finale of BorN.