My guess is that the ending will be as crappy as the series has ultimately turned out to be: Naruto dies and Sasuke becomes Hokage as a way of atoning for his past sins, and as a way to honor Naruto's memory. Sakura dies a virgin, not having scored with neither Naruto nor Sasuke, and Hinata either also dies a virgin, being forced to live to take leadership of her bloodline but not marrying anyone, or immediately slashes her wrists at the depressing, not-even-Prozac-can-heal-this news of her beloved Naruto dying, effectively giving supremacy to the Hyuuga branch family in either case.