-Furniture
-More mobs and bosses
-Bigger villages, even cities
-Lanterns
-Fencing in all of the wood types
-Player gender
-Seasons
-Visible fish
-More ores in the Nether
-Different types of TNT
-Make the end of the game more interesting/ better
-More rare items
-Hydration in Hard-Mode and maybe Normal-Mod
-Rare sources of water in the nether(In case one gets trapped, it would allow you make another portal instead of quiting the world)
-Colored beds