According to the Shogakukan official website, Hata Kenjiro will suspend the serialization of “Hayate no Gotoku!” from January 4th (Chapter 351) until February 29th. He said “I need to prepare for a very important project at the sacrifice of the weekly serialization. The details of what I’m working on will be announced within this year.”
Related topic: New Anime of Hayate no Gotoku Confirmed
The chief editor of Weekly Shonen Sunday magazine revealed on the official website that a big project of manga “Magi” has been underway. It will be officially announced soon.
Sources: Mangaka Back Stage, Web Shogakukan