After more than three decades with fans, Detective Conan now has an ending that Gosho Aoyama has been preparing in advance. The creator revealed he has completed a preliminary draft for the final chapter, including page layouts, panel designs, and character dialogues.
Aoyama shared this information during a special program on Japanese television. When asked about the final chapter of Detective Conan, he jokingly asked the interviewers if they wanted to see the draft before teasing, “It’s going to be very interesting.”
This immediately sparked fans to revisit hints and comments Aoyama has dropped over the years. Based on those clues, several intriguing ending scenarios have been speculated as the story approaches its conclusion.
Conan returns to Shinichi but Ran may discover the truth in a complex way

One of the most anticipated moments is when Conan finally returns to his original identity as Kudo Shinichi. Aoyama has repeatedly assured fans that Ran will have a happy ending. Therefore, it seems unlikely that Shinichi will remain permanently in Conan’s form.
However, Shinichi’s return probably won’t be as simple as taking an antidote and immediately reuniting with Ran.
When asked if readers would see Conan cry in the finale, Aoyama gave a cryptic answer. This detail led many to speculate that Shinichi’s transformation back might come with a major event.
Ran has long suspected Conan’s true identity. Fans believe she may finally learn that Conan is Shinichi during the climax, as secrets about the Black Organization are revealed.
If that happens, Shinichi will have to confront the years of secrets he kept from Ran. A happy ending could still be possible, but the story may require a significant turning point to close the unique relationship between these two characters.
Haibara’s fate could be the most unpredictable

While Conan and Ran seem destined for a happy ending, Haibara Ai’s fate remains much harder to predict.
When fans asked if Haibara would find happiness, Aoyama gave subtle answers. In another interview, he hinted that Haibara’s ending might surprise everyone.
This raises questions not only about whether she will regain her original form as Shiho Miyano but also about what kind of life she will choose after the Black Organization falls.
If a complete antidote for APTX4869 appears, Shinichi will almost certainly want to return to his true self. But Haibara’s situation is very different.
The name Shiho Miyano is tied to the Black Organization, family losses, and years of being hunted. Meanwhile, Ai Haibara’s identity offers her relationships and a normal life she never had before.
Therefore, one of the most interesting possible endings is that Haibara might not need to revert to her original form. Instead, she could be given the choice to live the life she truly desires.
The Black Organization will collapse, but victory may come at a cost

The Black Organization is undoubtedly one of the biggest issues that must be resolved before Detective Conan ends.
Gin is a key figure in the story, as he is the one who forced Shinichi to take APTX4869, setting Conan’s entire journey in motion. It’s very likely Gin will continue to play a major role in the final confrontation.
When asked about Gin’s fate, Aoyama gave no clear answer, suggesting that handling this character is quite complicated. This makes the final battle with the Black Organization even more unpredictable.
Many fans might expect the police to appear and arrest the entire organization. However, given the story’s scale, the ending might not be that straightforward.
Another popular theory is that the final battle will come with a real sacrifice. Shuichi Akai has long been associated with dangerous choices and a willingness to sacrifice himself to protect others.
Additionally, Vermouth has a special connection to Shinichi following events in New York. Some speculate she might choose to sacrifice herself to repay an old debt.
Of course, these are only theories based on details Aoyama has shared. No official information confirms which characters will sacrifice themselves, what will happen to Gin, or what life Haibara will ultimately choose.