An OVA in development by the same producers of Kono Danshi, Uchuujin to Tatakaemasu (CoMix Wave and Sentai Filmworks). The english translation of the title is "This Boy Has Picked Up a Merman". No other information is available at this time.
Source: http://www.animenation.net/blog/2012...s-konodan-ova/
Source: http://www.animenation.net/blog/2012...s-konodan-ova/