The official website for Shueisha’s Grand Jump magazine is listing the Grand Jump Mecha special edition magazine with a third issue slated for November 28, and Shueisha will continue to publish a new issue in odd-numbered months.
Grand Jump Premium is being rebranded as Grand Jump Mucha, so Shueisha will no longer publish the Grand Jump Premium magazine.
Shueisha will also launch a new magazine titled Grand Jump Mucha on December 26, and will continue to publish a new issue in even-numbered months.
The first issue of Grand Jump Mecha shipped in November 2017, and the second issue shipped on May 30.