[It bothers Neji a little bit that the great Yondaime doesn't have all the answers, either, but he conceals this behind his blank Hyuga expression. However, he does have an alternate theory which might instead provide an explanation that could account for...everything he's seen, at leas.]

Perhaps the 'worlds' these people come from are our own? We have no way of knowing how far beyond our own time we've come, but time-displacement is obvious even amongst those we do know. It's possible that this world is our own, from a time so far in our world's future that Konoha and the five lands are as lost to history as the world before the Sage of Six Paths. All the other worlds might be from a time between these two points, or perhaps even a time beyond this. [Although, frankly, something reaching into the future sounds like a far too powerful jutsu. Then again, all the chakra absorbed from the people taken here must go somewhere--and constantly so. Perhaps...]

The question becomes then, what here would bring so many so far across time...? [And evidently return them to life in the process.]