User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-82.6.168.96-20190829232600/@comment-2208155-20190830083432

Maybe we should wait until Shin 6 to receive the characters that will be important in the next volumes.(between Shin 7-¿?). Now is too soon to reveal it.

I am sure that Roygun and Lint will be part of them.. Issei will defeat belial before DX.7