LonerGoth said:
my speculation is that it'll take a few years to make a time manipulation dimension, not unlike the Villa Eva owned, remember the one in which minutes pass by in reality but days pass by in the villa?
She could probably make a reverse one, but it'll most likely happen after everyone has done something towards saving the worlds, and basically, what I'm saying is, everyone will be older, and then meet up after a hundred years, practically the same age, after going on various adventures and helping out one another, they'll eventually be at a point in their lives were they can justify going into the villa, and warping to the future~
I would like this way.
Also I wouldn't be surprised if Negi was the one that created the time travel machine/theory that Chao used to come to the real world.