After some images in a previous issue of Famitsu, it has been confirmed that an Ika Musume (Squid Girl) costume shall become available in the upcoming update for Splatoon. It consists of three components: a hoodie, a dress, and shoes. It has also been noted that there shall likely be a male equivalent of this costume. It is currently unknown if this costume will be released outside of Japan, but since the update shall be released in the coming days, it shall not be long before the answer is revealed.