When Momoshiki appeared last chapter it became evident that he and Boruto are somehow connected. I think this was one of those moments of fate Momoshiki referred to when he mentioned that Boruto's blue eyes would take everything away from him. Could he have been referring to him not having his byakugan unlocked and thus being too weak to change the outcome of the scenario? I think during this showdown in the village he will confront this fate for the first time and unlock his dojutsu right on cue.