The OVA will be released in Blu-ray format, and will be coming bundled with the limited edition version of the light novel’s Vol. 12 release.
The OVA bundle will be released on July 24, 2017, with pre-orders being open only until March 31, 2017.
The twitter page for the KonoSuba anime has announced that in 2017, KONOSUBA -God’s blessing on this wonderful world! would not only be getting a second season, but a new OVA is coming along as well!
The Volume 12 limited edition version also comes with an alternate cover and an illustration box by the LN’s illustrator himself, Kurone Mishima.