Today the official IDOLM@STER blog posted this update. There will be a “~14thAanniversary P@rty!!!!!” streamed on Nico next week.
You can watch this live stream on Niconico Live. It will start airing on July 23, 20:00 JST (UTC+9).
Appearing on the stream will be Akabane Kenji (BaneP, CV of 765Pro Producer), Nakamura Eriko (Eriko-sensei, CV of Amami Haruka), Aoki Ruriko (Ruuri, CV of Tada Riina), Watanabe Yui (Yuiton, CV of Watanabe Nao), Terashima Takuma (Terashii, CV of Amagase Touma), and Mineda Mayu (Damayu, CV of Hachimiya Meguru). The IDOLM@STER series producer GamiP (Sakagami Youzou, Hentai) will also appear on the live stream.
The 6th anniversary event ended awesomely with the new voices for Yuzu, Hiromi, Tomoe and Hina appearing for the first time on stage performing their upcoming song! Satou Rina as Chihiro also made her first on stage appearance today!
Earlier today, an announcement regarding the future of THE IDOLM@STER MILLION LIVE! (Greemas) was posted in game. To prepare for the end of service of the game in the near future, the game will stop updating and start disabling features from December 2017 onwards.