FxDK aka the new update

I was reading up on the tweets that FiveM has been posting and my eye caught the tweet in which the new FxDK is being announced (albeit in really early access)

Could someone from the team elaborate a little more about what this update exactly will bring ?

I am specifically curious about the world editor part, is this going to be some kind of build in map editor which would allow us to actually do the work we normally have to do with Blender / 3DMax or is it more like Menyoo ?