Hunger

According to Jeb on Twitter, Hunger will be added as a new aspect of gameplay to Minecraft. Allowing food to be stacked, increasing the amount of food one can carry in their inventory at a time. It has been hinted that this will be added when Hardcore mode is added. Despite that fact, some community modders have already created SurvivalSinglePlayer mods that add hunger followed by SurvivalMultiPlayer mods.