Hei man, great work seriously! It is sad that this thread doesnt get more attention you certainly deserve it. You are doing something that has never been done before and i hope you can finish through with it. I am working on a mod and i want it to be fully compatible with your mod, if you finish up could you make a small list of things that need to be watched out for in order to make mods fully compatible with your mod? If this mod finishes it could be a much needed game changer and should wake up Microsoft and Mojang(because modders do more than the devs).
Also one thing, dont cubic chungs tend to break lighting? like a big cave that is out of render distance would let light flow in right? Do you have any possibile ways of fixing this? leaving blocks in a pseude rendered state where they just block the light? just curious.