GM Island by world building - still possible?

[eternalx]

Some people probably remember the patch-6.MPQ way of getting to GM Island. I still was able to get there this way until 4.0.1, when they changed the client and using this file just crashed you if you tried. I'm wondering if anyone has been working on a new path to GM Island MPQ, or if this would even be possible with the solid blue wall that's now there when you do the rocketboots trick?

I've been trying to play with the old MPQ a little to try and get it to work, but so far no luck. Has anyone been working on something like this who knows more about model editing/world building than me? Thanks