User blog comment:B214/Volume 22 spoilers/@comment-50.139.232.230-20160831200817

Just bit curious if Issei has Dragon related upgrade like the Flame Blaze, Dragon Wings, Dividing Wyvern Fairy and DxD form, is it possible for Vali to unlocked his Demonic Heritage "Lucifer" to transformed his Longinus to have a Devil like trait and gained a upgraded form of EJOD with devil like qualities.