Author Ryo Shirakome stated in the comments for the 12th volume of the light novel Arifureta Shokugyou de Sekai Saikyou that the novel series will end in the next volume.
novel series Arifureta Zero light 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