Close friend of Kentaro Miura says he’s known how the series would end for almost 30 years.
Ravine”, Berserk Wiki
Berserk manga to restart with creator's friend who knows planned ending as supervisor : r/japan
Things You Didn't Know About Kentaro Miura, The Creator Of Berserk
Berserk manga will continue without Kentaro Miura - Polygon
Berserk Fans Still Have Something To Look Forward To After Creator's Death
Berserk: Ougon Jidai-hen - Memorial Edition
Why do chapters of Berserk take so long to come out? - Quora
Kentarou Miura's Assistants Resume 'Berserk' Serialization, 'Holyland' Creator Kouji Mori to Supervise - Forums
Hit manga series 'Berserk' to return in bid to deliver late creator's unfinished story - The Mainichi
Before You Read Berserk
Why Berserk Should Never Have Returned
What will happen to Berserk manga after the death of the author? Can anyone else pick it up and continue from where it was? - Quora