New biome for better experience

Just add much more new biome each year,and add new mob tp put in the new biome too so the player will get a lot of challenges to face the mob to try the new block to experience the new biome. Make sure to add a boss too,just make the Minecraft feels more life and fantasy then just a empty mountain and ground. New dimensions could help a lot for player to continue their journey after exploring the new biomes. Don't forget to update the Nether and The End too. But i think most of you forget about this biomes,The mushrooms biome can you add new mob or something useful?. There's still a lot of my mind but i will just try this one first, sorry for my english or anything bad word there I don't know,Thank you.