We should have hailstorms, winds, sandstorms, volcanos, and earthquakes.

Mojang should add earthquakes which would disrupt landforms and structures; volcanoes throwing out pyroclasts breaking buildings; hailstorms destroying crops and glass; sandstorms relocating sand in deserts and strong winds even blowing away trees. I would also like them to launch a major update fixing the multiplayer, duplication and GUI glitches. This will all the players happy and content with your game. Please heed my advice. Best wishes from me.