As for what kind of scheme this certain-kill trap truly was, perhaps not even Shimura Danzō, the planner himself, fully understood it.
However, the one thing Shimura Danzō, who had designed this certain-kill trap, surely knew was that the day its preparations were complete would be the day he began clearing away every obstacle before him. Uchiha Yue happened to be one of the targets Shimura Danzō intended to eliminate. Thus, while Uchiha Yue was still serving Konoha on the front lines, Konoha's elders had already begun making preparations to strike, intending to remove the ninja hailed as the foremost of the Shinobi World's new generation.
Furthermore, aside from Shimura Danzō, Mitokado Homura, and Koharu Utatane of Konoha's Council of Elders, no one else knew of the certain-kill trap. Even the Third Hokage, who held Konoha's political power, Uchiha Yue's teacher Tsunade, and even such figures as Orochimaru and Jiraiya of the Sannin had all been kept in the dark. This alone showed just how long Shimura Danzō, Mitokado Homura, and Koharu Utatane had meticulously prepared for this certain-kill trap.
To conceal a certain-kill trap from so many of Konoha's higher-ups was naturally no easy task. And having hidden it from so many Konoha higher-ups, the trap they were about to complete would surely produce results beyond everyone's expectations. Unfortunately, Shimura Danzō, Mitokado Homura, and Koharu Utatane, the three members of Konoha's Council of Elders, had no idea just how laughable their certain-kill trap truly was, nor how many hidden dangers it would bring to Konoha.
Perhaps if Shimura Danzō and the other members of Konoha's Council of Elders had known how things would end once the certain-kill trap was completed, they would have abandoned their plan immediately. Yet Shimura Danzō and the others were ultimately only human, not gods.