It’s not quiet an S3, but I’ll take a 60 min OVA with higher production values. Based off the description there’s going to be some anime original content. At some point, the plot might line up with volume 9 since Yuki and Kurumi get summoned by the Village. Maybe the volume 11 Afterword will shed more light on this project. Most likely we’ll get a PV during winter Comiket.
Everyone that can afford it please help support the series and buy the BD Box on March 28th 2018.