>>58002931
Not just the leak, Kyurem's gen 8 entry from Home says he has foreseen the world of truth, Kyurem seeing futures via dreams is 100% canon.
Even the anime has a huge gen 5 parallel with two heroes' black Rayquaza and white Zygarde as stand in for Zekrom and Reshiram, and between them there's Terapagos as stand in for Kyurem. Kyurem is the pokemon that foresees other worlds through dreams, Terapagos is the pokemon that makes dreams come true through other worlds. "All dreams are but another reality."