So many things to say, lets see if i can put it all in without having to REedit
1.
A new biome. I don't care what it is, just add a new tree type, and some land formation that makes it special (jungle is different sized trees and vines, swamp is its addition of water and many lilypads, spruce forests have winter)
2.
aquatic mobs. Again don't care what it is, Squids just are not ALL THAT anymore
3.
Natural Formations. WATERFALLS AND VOLCANOES :3
4.
New world. The end is well, the end. the Nether needs something to counter it. I say after a rainshower, there should be a short period of time when a Rainbow spawns(then despawns
) and if you find where the rainbow touches down, you can climb it into mabye the Aether if anyone knows what that is.
5.
MAKE EMERALDS USEFULL! give us armor and tools. the armor/tools can be the same as iron in value :3
6.
More Ores. Add sapphires and rubies. Make armor and tools and make them the same as iron. this would be cool because Mojang left everyone a little disappointed in the dyed leather armor update :/
That's all I can think of for now. If I think of anything else I well add it in :3