The May issue of Bessatsu Shonen , which contained the final chapter 139 of the manga, Attack on Titan will have to be reprinted. The manga's publisher reported that the issue is selling out in all stores. The new print run will then begin arriving in Japanese bookstores starting April 30th.
The Attack on Titan manga has concluded after 11 and a half years of serialization. The 34th and final volume of the manga will therefore be released on June 9th.
Author Hajime Isayama 's Bessatsu Shonen magazine Kodansha in 2009. The publisher then released the 33rd volume of the work on January 8th.
Source: ANN