Boruto: Two Blue Vortex chapter #13 dropped multiple bombshells, including confirming several fan theories and even introducing a multiverse angle. After Boruto and Konoha’s battle with the self-aware Divine Trees, it became clear that the young ninja had developed drastically in the past four years, and it couldn’t merely be traditional training at play. Indeed, with the re-entry of Koji Kashin into Boruto: Two Blue Vortex, the reveal of his abilities, and the many possible futures at stake, the story will never be the same.

https://screenrant.com/boruto-two-blue-vortex-multiverse-prescience-koji-kashin-canon/