AKB49: Ren'ai Kinshi Jourei (AKB49〜恋愛禁止条例〜) is going to final countdown down, it is announced in chapter 249, the manga will be end in 14 chapters.
AKB49: Ren'ai Kinshi Jourei is a manga based on Japanese real idol group AKB48 group, it began since 2010, and manga vol.27 will be released at 17 November 2015, vol.28 and vol.29 will be released in January 2016 and March 2016.
Original sources: Mynavi
Pre-order AKB49 vol. 27 at CDJapan: