AnimeNewsNetwork's report appears to be quite wrong, if the advert is their only source. Here's what it actually says:

What to take away from this:
- Movie 3 is to be mangaized by the Special Volume artists (no, this won't make it canon).
- Some police love stories are going to be republished, which is pretty normal and not of any real note.
Original Report From AnimeNewsNetwork:
Yutaka Abe and Denjiro Maru's Meitantei Conan: Seiki matsu no majutsushi (Case Closed: The Last Magician of the Century) manga will launch in Weekly Shonen Sunday's March issue. The [s]three-chapter[/s] manga will be based on Gosho Aoyama's original story and adapt the 1999 film of the same name. Aoyama's new Meitantei Conan: Sousa Ichi-ka Hen manga will also retell the story of Conan's first case.




