4.0 is around the corner, but you wont see all the features we promised in 4.0, they will be released once a week as 4.1 , 4.2 and so on. The major changes you can expect in 4.0
the game map now actually feels like a wateland, with leaf less trees and huge craters that shows how a nuclear apocalyspe changed the landscape
some pics
But thats not it for 4.0, the greatest addition is the new block building system, and yes its inspired by minecraft, keep in mind that this is just for building blocks, structures and special buildings are still in.