User blog comment:B214/Volume 21 info & spoilers/@comment-93.105.246.116-20160606130720/@comment-1359322-20160606161344

Ishibumi already pulled that using 666. The Bible God was originally thought to have died in the Great War, then in V16 it's revealed that he died because he sealed 666 and enter the war in a weakened state. Pulling another angle wouldn't do any impact anymore in fact it'll make things look more dumb.

If there's a need to pull such an angle again i would prefer if it goes to the original Yondai Maou instead.