So, I've not talked about Negima for a few months now. In the interim, we got Nodoka being ten kinds of kickass, Fate's plan revealed, Asuna's personality after memory restoral revealed, Negi proving one again he can solve any problem in the world by finding the right girl and kissing the bejeezus out of her, and he's apparently going full demon power or something.
But anyways, Fate's plan involves transporting everyone in the Magic World to a special "other place" that is apparently a paradise, but he doesn't really know. Because magic is what sustains life on mars, and eventually that magic's going to run out, and the whole thing will come crashing down. When it does, well, first off, every single "magic person" there vanishes straight-out. Second, every normal person (mostly in Megalomesambria) suddenly ends up on Mars proper...
So Fate's plan, since it would be wrong to just save the real folks in Megalomesambria, and impractical to have 1.2 billion new refugees on earth, is to just teleport everyone...well, somewhere. He doesn't really know much about the place, apparently. And he's got to use Asuna to do it. He apparently also needs to mass magic power in the world, which is why he destroyed the gateports- they apparently siphon it off, and now it's all poring through the old ostia gate, straight into....Mahora, obviously.
Now, I've seen this as a huge computer metaphor. The humans are all "ghosts in the machine" if you will, the magic folk are all sentient programs, and the entire magic world's a computer on the verge of a blackout. Fate wants to move folks over to a new hard drive, but he hasn't been there to see if it's kosher.
Now, with the world tree glowing, here's how I see this going down. Step one: Chao comes back! This time, there's a crisis, and Negi et. al. agrees that it's time to reveal magic to the masses. Then, using newly integrated magic and technology, they can adapt to the new refugees. That'd be chaos and hell, but it'd be interesting. I'd love to see the political implications.