User blog comment:Crimson and Darkness/DxD Updates 2~/@comment-2208155-20191227094951

SHIN 4 will probably(one previous volume was delayed before) be out the 20 of February:

https://media.discordapp.net/attachments/407552971962843136/660052279512137744/unknown.png?width=960&height=382

Is in Japanese but you can see DxD 4 here.