Update: this post is now outdated, as the VOCALOID in question is not Rio. Read this post instead.
Yamaha’s official twitter recently announced that a new Vocaloid (not VY1) would be revealed at the Sanrio booth held at Comiket 78. According to this tweet by Tomohide Ogata (AHS) and Hatsune MikuMiku blog, it appears to be from AH-Software.
