With how popular Fujimoto is, it's actually possible.
Summary:
- According to a newly registered domain name, an anime adaptation of Tatsuki Fujimoto's Look Back is in the works.
- There's not enough content for a TV anime, but it might be a movie.
- Fans want KyoAni to animate it, not MAPPA.
Tatsuki Fujimoto is known to many otaku nowadays for his hit series Chainsaw Man. That's not his only work, though: to avid manga readers he was famous even before it as the author of Fire Punch.
Among his other works are a couple of one shots that were released in the past few years. One of those one shots is Look Back — a coming-of-age drama story about two artists. According to a yet unconfirmed leak, it is set to receive an anime adaptation, though there's no other information currently known.
The rumors might be true
The justification behind the leak is actually quite simple: a web domain named “lookback-anime.com” was registered recently, and it's hard to imagine what other work it could be for.
An adaptation of Look Back is not out of the realm of possibility: Tatsuki Fujimoto has been getting a lot of media attention with Chainsaw Man and his interviews regarding the series. The popularity of CSM makes Fujimoto fans hope for more adaptations of his works — and who knows, maybe Fire Punch will get an anime as well one day.
It probably won't be a TV series
Look Back is a one shot, so unless it is heavily expanded, an adaptation in the form of a TV anime is out of the question. That said, the one shot is actually very long — over a hundred pages — so fans are hoping for a movie or OVA adaptation.
With the Chainsaw Man sequel being a movie, the former is more likely — especially considering that OVAs haven't been very popular recently.
Another possible way to adapt Look Back is going to be in the form of a TV special — like the recently released Fate/strange Fake: Whispers of Dawn, or the final episodes of Attack on Titan (Shingeki no Kyojin). Fans estimate a potential duration for the Look Back adaptation to be between 1.5 and 2 hours, which makes the theory plausible, at least.
Fans don't want MAPPA to be involved with it
Curiously enough, fans don't really want MAPPA to animate Look Back. Treatment of animators aside (let's be fair: most probably aren't aware of MAPPA's working conditions), they simply don't think MAPPA's often over-the-top style would fit Look Back's down-to-earth, realistic drama nature.
The studio that Fujimoto fans seem to bring up for this project is Kyoto Animation. Known to be one of the best studios in the industry — for both animators and viewers — they have been involved with many drama anime with a real-life setting, like Sound! Euphonium (Hibike! Euphonium) and Tsurune. This choice would be perfect for Look Back.