Vertical announced three new releases at the recent KatsuCon, including a light novel release and two manga releases.
First up is an omnibus edition of the Seraph of the End light novels. The first omnibus is planned to be released in December 2015. So far, seven volumes have been released of the manga version since 2012, with three volumes currently published in English by Viz Media and the fourth volume planned for release on March 3, 2015. An anime adaptation is planned for April 2015.
Second is the release of the Ninja Slayer manga. It is not clear which manga adaptation will be released, as there are two manga different manga stories adapted from the original light novels, which were originally posted on Twitter. Trigger is producing an anime adaptation that will premiere in April 2015.
Third is the release of Kizumonogatari, the third volume in the Monogatari series. Vertical stated that NisioOisin requested they start with the third volume.
Exact release dates for these releases have not yet been confirmed.