Well, if this does infact happen, this means probably better support for shaders (more developers and optomized software) more updates, and a stuffload of people.
Also I bet in the future when the game is very well-known, there will be merchandise. shirts, logos, and maybe even Blockland toys. Of course I'm not implying this will happen, nor am I promising it. But we all know that if Blockland does become greenlit; stuff will change. It might just change for the better.
(also badspot will become pretty wealthy) <-- hopefully.