1. Mahou Sensei Negima has been confirmed to end in three chapters but the last 3 chapters are after a a 2 week hiatus. With this, it ends at 38 volumes and is a great loss to Kodansha's Weekly Shonen Magazine.
2. Magi, a manga currently running in Shogakukan's Weekly Shonen Sunday has been chosen for an anime adaptation.
3. The shojo manga Black Bird is most likely ending this year.
All credit goes to the twitter page Manga-news Japon (https://twitter.com/#!/manganewsjapon) for providing me with updates and pictures as soon as they are available and making me practice my French reading skills - yes the twitter updates are all in French.