Minecraft should completely change how Ender chests work. They should make it so you can put as many items in there as you want, and have a button that brings up a random assortment of items you have put in there. They should also make it that the items are "stored" in a dimension known as the black hole dimension. The chest however, would take a random item from what you put in, unless you killed the boss in the black hole dimension. The dimension could be accessed by blowing up an Ender chest. However, if you blew up the chest and didn't kill the boss the black hole would start to consume your world.