Announced on Twitter, the second season of Kono Subarashii Sekai ni Shukufuku o! (KonoSuba) will be airing sometime in January 2017. Based off of the light novel by Natsume Akatsuki, the ten episode first season premiered earlier this year. If you need something else KonoSuba related to hold you over until the new season, you may be interested in the Aqua Nendoroid which is set for release this November.
The first season of KonoSuba can be viewed on Crunchyroll or AnimeLab depending on your region.