Along with the new titles, Kodansha announced they'll be releasing omnibus editions of Genshiken and Kitchen Princess. (kuriousity.ca)
No release date was announced for omnibus editions, but I would expect another end of the year release for it. (manga.jadedragononline.com)
In the fall, Witness will release all the «Hercule Poirot» short stories as digital singles, and then together in a single omnibus edition with a foreword by Charles Todd. (goodereader.com)