According to Famitsu.com, a three-episode OVA of The iDOLM@STER
was announced at the live event THE IDOLM@STER 7th Anniversary. The OVA will be bundled with the new iM@S game "iDOLM@STER Shiny Festa", which will be released in three different versions: "Honey Sound", "Funky Note", and "Groovy Tune". Each version will carry only one episode of the OVA. The production staff are the same as those of the TV series.
The iDOLM@STER: Shiny Festa