User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-30924344-20180103120436/@comment-30924344-20180104023753

AxA won't be revealed. AxA is the liberation of Ophis' and Great Red's powers with Ddraig's. ExE is the powerup that may be revealed because it's Great Red's and Ddraig's powers together, DxD's sister form.