The most recent volume of B's Log Comic December 2014 had the five main characters of Ame Nochi Hare as the cover illustration with "堂々完結" running down the middle of the cover.
"Triumphant conclusion" indicates the series is ending with the chapter in this volume, no. 39 by my reckoning.
Volume 8, probably the final tanko, will be published on 29th December.