Warning! Spoilers ahead for Boruto: Naruto Next Generations chapter 69!
The truth about how Kawaki killed Boruto immediately began posing a threat to Naruto's status as Hokage ever since he decided to keep the truth from the villagers of Konoha. But now that threat might actually become a reality much sooner than expected.
Konoha never truly trusted or agreed with Naruto's decision to let Kawaki stay in their village because the boy had originally been raised by the villainous Kara organization to serve as the future vessel of Isshiki Ōtsutsuki. But Naruto ignored their disapproval and continued to care for Kawaki because his own past of being ostracized allowed him to sympathize with Kawaki's current status as a social pariah. The prospective revelation that Kawaki actually killed Boruto would undoubtedly push the villagers over the edge, causing them to demand the boy's exile regardless of the fact that Boruto had actually asked Kawaki to murder him and that he actually survived in the end. But should Konoha ever learn that Naruto was aware of and actively tried to cover up the incident, Naruto's future as Hokage would definitely become uncertain.
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Chapter 69 of Boruto just expedited the likelihood of that actually happening by Sumire Kakei overhearing the truth. After his clash against Code and the Momoshiki-possessed fully Otsusuki Boruto, Kawaki had fallen unconscious, eventually waking up in Konoha to Naruto and Sumire. Although the Hokage asks Sumire to leave so he can have a private conversation with the boy, she is still in the room when Kawaki quickly asks if Naruto will condemn him for killing Boruto. This news understandably shocks Sumire
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