What Scratch 4.0 should (but won't probably) add. - 3D - X,Y,Z, rotation, and pos, that works like x, and y. You could make a new 2D project or a new 3D project and import obj. files. - Dark Scratch - The dark side of Scratch. Nuff' said. - Trading - A built in trading card system that's all cloud, but could be synced across profiles. (Only 5 year people could us it.) - More Cloud Variables! - Needs no further explanation. - Built in physics - An extension like box.js in Scratch.
