So this idea came to mind with me and our server player folks out there. We use a Skylands world, a small testing world at this time (will become our second survival world soon - gotta migrate our server first) and everytime a player falls, they just simply die. Well how about this. It seems rather possible to do so why not? As you fall from the skylands (note the cloud line) you will end up teleporting back to a world (configurable - for us it would be our regular survival world) at y=128 and simply just fall wherever your cords where from the Skylands to the Survival world. Of course - falling death is supposed to happen, but players would respawn back in the normal survival world and items would be lost anyway. Just a thought
I believe this might be what youre looking for: Inception http://forums.bukkit.org/threads/tp...lta-world-layering-and-overlapping-953.19964/