Bold claim: The Last Ronin is staging a comeback, and this time the update comes with a surprisingly positive signal from a co-creator of the TMNT universe. If you thought the live-action Ronin project was shelved for good, think again. Here’s what’s happening and why it matters.
The Last Ronin: Training Day has been confirmed to keep expanding this year, this time through a prequel-focused arc centered on Michelangelo. The new release fits into the broader Ronin saga, which began with Mikey as the sole surviving Turtle after Leonardo, Raphael, and Donatello fall, and follows his quest for vengeance in a Dark Knight Returns-inspired future where he confronts Shredder’s grandson, now leading the Foot Clan. Although Mikey ultimately dies in the main timeline, the franchise continues with The Last Ronin: The Lost Years, which dives into his darker transformation. A later sequel introduced a fresh trio of Turtles—Odyn, Moja, Uno, and Yi—mentored by Casey Marie Jones, the daughter of Casey Jones and April O’Neil.
Sequels continued to map the emotional and tactical evolution of the team: The Last Ronin II: Re-Evolution chronicles April’s death, and while The Last Ronin III is officially in development, Training Day specifically explores Mikey’s evolving relationship with Casey Marie Jones.
Kevin Eastman, TMNT co-creator, explains that the broader Roninverse project yielded many stories that didn’t fit into the initial 200-page format. One such idea focused on Michelangelo spending time with Casey Marie Jones, a narrative Eastman describes as revealing Mikey’s recognition of Casey Marie’s spark, hope, and the values she represents. He notes that Mikey leans into Splinter’s teachings and the city-protector role that the Turtles were always moving toward.
The creative team behind Training Day includes Tom Waltz as co-writer, with artwork by the Escorza brothers, Ben Bishop, Luis Antonio Delgado, and Shawn Lee. The title arrives just after Paramount reportedly scrapped an R-rated live-action adaptation of The Last Ronin. Eastman offers a tempered note of optimism: the movie isn’t canceled, just delayed. He emphasizes ongoing dialogue with Viacom, Paramount, and Nickelodeon—outlets that have a track record of supporting the Turtles across formats, from the 2012 series to Mutant Mayhem.
Despite the setback rumors, Eastman insists there’s a clear path forward for a non-animated Ronin film in the future, underscoring that the fan base’s enthusiasm remains strong and that other partners—like Point Grey, Seth Rogen, and Evan Goldberg’s team—are still very much invested in the Mutant universe.
Meanwhile, in film development news from last November, Neal H. Moritz of the Fast & Furious fold is overseeing a new live-action Teenage Mutant Ninja Turtles project at Paramount, described as an effort to give the franchise a Sonic-like refresh. Directors and casting talks have shifted, with Ilya Naishuller previously tied to the project but reportedly facing a regime that’s less eager to produce a bloody, adult-toned Ronin story as the franchise’s first non-animated feature in a decade. There were also whispers that Judith Hoag could reprise her April O’Neil role from the 1990 film.
For fans eager to see more of Mikey and Casey Marie Jones, a first look at The Last Ronin: Training Day released ahead of its July publication, offering a glimpse into where Mikey’s journey might head next.
Bottom line: The Last Ronin saga isn’t dead; it’s evolving. If you’re hoping for a definitive big-screen return, this year’s updates show the brand’s commitment to expanding its corner of the TMNT universe—through comics, prequels, and possibly a delayed but still very much alive live-action project. Where do you stand on the tension between keeping the core dark, adult themes and delivering accessible, broadly appealing adventures for younger fans? Share your thoughts below.
