- (March 9, 2017) New Testament Volume 18 To Hit Shelves on May 10: Release details for the 18th volume of the Shinyaku Toaru Majutsu no Index light novel series have been released on the Dengeki Bunko official website. Source: Dengeki Bunko
- (March 14, 2017) Index-Virtual On Crossover Story Gets Game Adaptation: Dengeki Bunko has announced in their latest Spring Festival that they are collaborating with game developer SEGA to release a game adaptation of the Toaru Majutsu no Virtual-On crossover novel for the PlayStation 4 and PlayStation Vita consoles. The game will be released in 2018. Source: Anime News Network
- (March 14, 2017) Editor Miki Kazuma on a Season 3: "Please Wait a Little Longer": Aside from the announcement of the Index-Virtual On game collaboration project, light novel editor Miki Kazuma has issued a statement during the 2017 Dengeki Bunko Spring Festival, asking fans of the Toaru series to "wait a little longer for a Season 3". Further details regarding the statement are yet to be determined. Source: Anime News Network
- (March 27, 2017) Railgun sidestory announced: With the 10th anniversary of Dengeki Daioh and Toaru Kagaku no Railgun coming in April, a new sidestory manga has been announced, to be illustrated by Nogi Yasuhito. Toaru Kagaku no Railgun Gaiden: Astral Buddy will begin in April in Dengeki Daioh, detailing another incident which takes place during the Dream Ranker Arc, featuring the ringlet curl girl from Shokuhou Misaki's faction as the main character. Sources: Gouranga (Railgun Manga Editor) through Twitter, Anime News Network
- (May 10, 2017) The Truth of Imagine Breaker Revealed: Shinyaku Toaru Majutsu no Index Light Novel Volume 18 is released. The leader of the Science Side is targeting Motoharu and Fran and has taken Maika hostage. Touma and Motoharu break into the Windowless Building to directly confront the aggressor. At last, Kamijou Touma comes face-to-face with the General Superintendent of Academy City, Aleister Crowley.
- (August 9, 2017) New Testament Volume 19 To Hit Shelves on October 7: Release details for the 19th volume of the Shinyaku Toaru Majutsu no Index light novel series have been released on the Dengeki Bunko official website. Source: Dengeki Bunko
- (August 9, 2017) Index/Virtual-On Crossover manga adaptation announced: Along with the PS4/PS Vita game currently being developed by SEGA, a manga adaptation of the Toaru Majutsu no Virtual-On crossover novel has been announced, to be illustrated by Karegishi Roji. It will begin serialization this fall in the biweekly Dengeki PlayStation.
- (September 19, 2017) Virtual-On PS4/Vita game to release on February 15, 2018: The first promotional video for the Toaru Majutsu no Virtual-On game was screened today at the 2017 PlayStation Press Conference in Japan showing gameplay footage and release dates for the game.
- (September 27, 2017) New Railgun Manga Arc to begin in October: This month's Dengeki Daioh magazine has revealed that the title of the 5th Toaru Kagaku no Railgun story arc will be the Jailbreaker Arc. The new arc is scheduled to begin in next month's issue.
- (October 1, 2017) Toaru Majutsu no Index Season 3 Confirmed for 2018: Dengeki Bunko editor Miki Kazuma confirmed during the Dengeki Bunko Autumn Festival 2017 that a third season of the Toaru Majutsu no Index anime series has been green-lit and will premiere on 2018 as part of the 2018 Toaru Project. Source: Anime News Network
- (October 7, 2017) Touma and Aleister on a Weird Re-Encounter—New Testament Volume 19 is Released: The 19th volume of the Shinyaku Toaru Majutsu no Index light novel series kicks off with Kamijou Touma meeting Aleister Crowley, the General Superintendent of Academy City, in a never-before-seen form! Shenanigans ensue!
- (December 27, 2017) A Trial by Fire — Toaru Kagaku no Railgun: Cold Game is Released: The judicial system of Academy City is explored when Saten becomes a key witness in the Cold Sleep Murder Case.