the darkest manga ever

It depends on your perspective. Berserk is definitely dark, with its violent and tragic storylines. But some might argue there are other mangas that could be equally or even darker based on personal preferences.

Hellboy has its dark moments, but it's not unanimously regarded as the absolute darkest. The perception of darkness varies from reader to reader, and other comics might push the boundaries further in that aspect.

Well, for a manga to be the darkest, it often features a lot of hopelessness, a cruel and unforgiving world, and characters facing constant and overwhelming hardships. Also, the art style might contribute, with heavy use of shadows and dark colors.

It's hard to say for sure. There haven't been any definite announcements yet.

It's hard to say. The possibility exists, but it depends on various factors like the creator's plans and market demand.

It's hard to say. The progress of the manga depends on many factors like the author's schedule and creative inspiration.

I don't really know. Maybe it will be finished if everything goes smoothly for the author and the publishing team. But there are a lot of unknowns.

It's hard to say for sure. The progress of manga completion depends on various factors like the author's plans and creative process.

Yes, 'The Darkest Child' is a novel.

Yes, Yato does rage on some occasions in the manga.