We learned back in late 2016, just as Shonen Jump was readjusting due to the end of Bleach and Nisekoi, that World Trigger was going on hiatus indefinitely because of an illness that creator Daisuke Ashihara was coping with, namely the ongoing cervical spondylosis. It looks like Ashihara is ready to get back into the game but it’s going to be done in a kind of awkward way. The series is set to return in the 48th issue of Weekly Shonen Jump at the end of this month where it’ll run for five issues. After that, it’s moving to the Jump SQ. magazine on December 4th. It’ll get an added bit of promotion at that time because the 19th volume of the series is arriving on that day as well.
Property concept: One day, a gate to another world suddenly opens in Mikado City. Aliens invincible to Earth’s weapons, called “Neighbors”, start coming over. Earth’s only line of defense is a mysterious group called the “Border” who are armed with weapons called “Triggers”.
Four years later, the city has recovered from initial attacks and citizens of Mikado City have started to get use to the Neighbor’s attacks. Yuma Kuga, a transfer student, and his classmate Osamu Mikumo find themselves fighting a Neighbor that suddenly appears. Osamu, who is actually a Border agent, activates his Trigger but is unable to defeat it. This leaves Yuma to activate his own Trigger and defeat the alien. Yuma reveals that he is not part of Border and is actually a Neighbor who has transferred from the other side.
[Source: ANN]