Surprised this isn't getting much attention, I haven't downloaded or tested it yet myself but if this is in fact the latest version then this is some good stuff.
Edit: Seems this works well! Latest version 8.0.2 (As of 01/23/19) and works flawlessly! Thanks OP for the leak!
Well, ETG has been, and still is, quite infamous with their updates to the contemporary(currently, that would be 1.13.2) versions of Minecraft. And since it doesn't work that "well" for 1.13+ I don't see myself using it over OTG(Open Terrain Generator) in the 1.12.* versions.
Following that, I'll keep praying for an insider/source leak.