Amplified World
I know others out there would be interested in the server hosting a world type like this, but I'm not quite sure how this would be implemented. If Zed would be willing, he could either have a seperate server hosting this world OR maybe MCedit part of an amplified world, paste it outside the border of the regular world, and then set a border on that. These are just some ideas to implement an amplified world and I have no idea how viable they're to you Zed.