Young Animal Confirms New Berserk Chapter Set for Oct. 25th of This Year

Chapter 377 is set for release October 25th, with Chapter 378 following closely behind on November 8th.

These will be the newest chapters written without Kentaro Miura behind the pen since his passing 3 years ago. The last chapter written by the mangaka was Chapter 364, somewhat melancholically titled A Tear Like Morning Dew. 

Link 1 confirming from Manga Mogura RE (twitter)

Link 2 from comicbook.com