The Idolmaster SideM has a console game in development for Nintendo Switch and Switch 2, with the title and release timing still to be announced, and a joint live with Shiny Colors set for June 2027. Its web radio will hold a public recording on December 12, 2026 at animate hall BLACK.
Coverage of The Idolmaster SideM since late June has clustered around three things: a change to a main cast role, the brand's return to console games, and live events. The run of news began with the Deramasu tourism collaboration in Nagoya, which ran DRAMATIC STARS as official ambassadors alongside thirteen local businesses from August 3 to October 31, 2026. A summer pop-up shop at Tower Records Shinjuku followed in July.
In August, Bandai Namco Entertainment announced that Koki Ino would succeed Ayumu Murase as the voice of Kanon Himeno. Murase's graduation was announced on August 18, and the handover was formalized on August 28. A special livestream on September 1 introduced Ino, with the cast of the program welcoming him and Sho Kano giving him the nickname "Yukiteru." The announcement noted that existing audio in 315 Production episodes would not be replaced for now, though some audio may be replaced in future operations.
Two live events followed in September. Bandai Namco announced on September 12 that SideM and Shiny Colors will hold a joint live, SPARKLE SHOWDOWN, at Yokohama Arena on June 5 and 6, 2027, with the two days split by unit. On September 13, Bandai Namco announced a console game project for The Idolmaster SideM, in development for Nintendo Switch and Switch 2, with the official title and release timing to be announced later.
The web radio will hold a public recording, 315 Production Night! Travel Edition, on December 12, 2026 at animate hall BLACK in Ikebukuro, tied to the M Fes 2026 in Winter Wonderland theme song Season's Greetings Party!, due December 2 at 2,750 yen.
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The Idolmaster SideM official web radio will hold a public recording event, 315 Production Night! Travel Edition, on December 12, 2026 at animate hall BLACK in Ikebukuro. It marks the release of the M Fes 2026 in Winter Wonderland theme song Season's Greetings Party!, due December 2 at 2,750 yen. Yusei Kikuchi, Yoshiki Yamaya, Takeaki Masuyama, Yuriku Ise, and Masaya Miyazaki appear.
Bandai Namco Entertainment announced on September 13 that a console game project has begun for The Idolmaster SideM, the branch of The Idolmaster franchise whose producible idols are all male. The game is in development for Nintendo Switch and Switch 2, with the official title and release timing to be announced later. Players take the role of a Producer at 315 Production and work with 49 idols across 16 units in what the announcement calls an idol producing and scheduling adventure. The story shares the worldview of the SideM brand page on The Idolmaster portal site but is a new story written for the game, following the idols toward a large-scale live concert one year away. At the start, the player picks one of the 16 units as the leader unit for that concert, and the story and conversations change depending on the choice. The concert concept is MMM.
Bandai Namco Entertainment announced on September 12 that THE IDOLM@STER SideM and Shiny Colors will hold a joint live, SPARKLE SHOWDOWN, at Yokohama Arena on June 5 and 6, 2027. Day 1 features SideM units W, FRAME, High×Joker, Shinsoku Ikkon, and C.FIRST with Shiny Colors units Houkago Climax Girls, Alstroemeria, Straylight, and Cometik; Day 2 pairs Altessimo, Café Parade, S.E.M, F-LAGS, and Legenders with illumination STARS, antim, Straylight, and noctchill.
The Idolmaster SideM special livestream aired September 1 and introduced Ino Yukiteru as the new voice of Himeno Kanon, the former child actor idol in the kids unit Mofumofuen. Cast members Nakamura Shugo, Kano Sho, Yano Shogo, and Furuhata Keisuke posted welcomes on X after the stream. Kano gave Ino the nickname "Yukiteru," which Ino accepted in his own post. Fans praised the new voice and said they look forward to Mofumofuen's next moves.
Bandai Namco Entertainment announced on August 28, 2026 that voice actor Koki Ino will succeed Ayumu Murase as the voice of Kanon Himeno in The Idolmaster SideM. Murase's graduation from the role was announced on August 18, following amicable discussions between both parties about the character's future. Ino expressed his intention to cherish what has been built so far while giving his best in the role. A special live stream to welcome Ino is scheduled for September 1 at 19:00 JST on YouTube and Niconico Live. The stream will feature Shugo Nakamura as Teru Tendo, Sho Kano as Yukihiro Kamiya, Shogo Yano as Nao Okamura, Keisuke Furuhata as Shiro Tachibana, and Ino as Kanon Himeno. During the program, staff will announce Kanon Himeno's future voice schedule and share details about the event 315 Production presents FANTASIC BATTLE FES ~Wanna step in~. The announcement notes that existing audio in 315 Production episodes will not be replaced for now, though some audio may be replaced in future operations. Ino will appear in the upcoming FES performances and related content announced after August 28.
The Idolmaster SideM will hold a "SUMMER SPLASH! POP UP SHOP" at Tower Records Shinjuku from July 17 to July 26, 2026. The event features newly drawn summer costume illustrations of High×Joker, plus mini character goods for W·Beit. A range of merchandise including acrylic stands, badges, and clear files will be available, with purchase bonuses.
Meitetsu Kanko Service and The Idolmaster SideM are launching the Deramasu tourism collaboration in Nagoya from August 3 to October 31, 2026. DRAMATIC STARS serve as official ambassadors. Thirteen local businesses each partner with a SideM idol, with accommodation and sightseeing plans offering exclusive goods.