User blog comment:B214/Season 3 discussion/@comment-36.3.190.140-20150519133601

Not sure if you guys know but Ishibumi-sensei has said on the nico nico live stream that Rias vs. Sona will not happen and also the Juggernaut drive scene (and Issei's oppai song) will be more badass then what it was in the light novel. (Apparently the anime staff went crazy on it :D) Also the next volume comes out this summer either June or July.