When does Record of Ragnarok return?

Record of Ragnarok is a Japanese manga series written by Shinya Umemura and Takumi Fukui and illustrated by Azychika. The Gods' Council assembles once every millennium to decide the fate of humanity. Humanity's representatives are the Einherjar, notable humans across history who are each granted a valkyrie who becomes a powerful weapon tailored for their user's combat style.