Author Ryo Shirakome stated in the comments for the 12th volume of the Arifureta Shokugyou de Sekai Saikyou light novel that the novel series will end in the next volume.
Arifureta Zero light novel series ended with its sixth volume, released on December 25th. That volume also hinted that the main series was reaching its climax.
Synopsis
Among the group transported to another world, Nagumo Hajime is an ordinary male student who has no ambition or aspiration in life, and is therefore called "incompetent" by his classmates.
Shirakome launched the novel series in Japan in June 2015 under the OVERLAP Bunko imprint, with illustrations by Takayaki .
Source: ANN