As of my last update, the exact date for Detective Conan's return to his identity as Shinichi Kudo remains unknown. The series, known for its intricate plotlines and cliffhangers, has not yet revealed a specific timeline for this pivotal event. The creators of the series, Tetsuo Hara and Gosho Aoyama, have been known to keep fans guessing, often delaying major reveals for dramatic effect.

The reason for the uncertainty lies in the nature of the series itself. Detective Conan, originally titled "Case Closed," is a Japanese manga series that has been adapted into an anime, live-action films, and various other media. The story revolves around Shinichi Kudo, a high school detective, who is poisoned by a mysterious organization and transformed into a child to avoid detection. As Conan Edogawa, he continues his detective work while trying to uncover the truth behind his parents' murder and bring down the organization.

The creators have intentionally kept the return of Shinichi Kudo as a major unresolved plot point, generating a significant amount of fan speculation and anticipation. According to data from the series' official website and interviews with the creators, the return of Shinichi Kudo is a crucial moment that will likely be tied to the resolution of the overarching storyline. Given the complexity of the plot and the number of unresolved subplots, it is reasonable to expect that the return will not occur until the latter half of the series or even the final arc.

Additionally, the creators have previously mentioned that they want to ensure that the return of Shinichi Kudo is a satisfying and emotional moment for fans. This means that it will likely be accompanied by a series of events that build up to this moment, further delaying the actual reveal. The popularity of the series, with over 100 million copies of the manga in circulation and a dedicated fanbase, also plays a role in the cautious approach to the reveal.

In conclusion, the return of Detective Conan to his identity as Shinichi Kudo is a highly anticipated event that is likely to be delayed until the latter stages of the series. The creators' intention to create a satisfying and emotional resolution, combined with the complex nature of the story, ensures that fans will have to wait for this pivotal moment.