"Poyo Rainyday-san"
That is absolutely naming win.
I believe that in Chao's future, segregation occurs on Earth and that may be what this "bloodshed" is. Although half-illusions, the illusions can only be dispelled with the Code of the LifeMaker, so to Earthlings they are just as real as they are. Without Ayaka's influence, this might cause utter panic on Earth, with suddenly over a billion new life forms entering the planet. This would cause war, a food shortage and, most importantly, a lack of space on the planet. So eventually they would have to vacate to the real Mars.
Negi's plan probably involves either combining the worlds (to avoid any major problems, since Mundus Magius is a hell of a lot smaller than Earth (what is populated is, anyway), or possibly bypassing the beings coming to Earth and going straight to Mars.
Also, I can foresee Evangeline, the real Evangeline, making an appearance soon.