Well! A list it is then
- Some sort of multileveled civilization system that enables you to not only lead a civilization, but just be a part of one. Allow there to be other rival or friendly civilizations as well, and NPCs and people work together to make better structures and cities.
- More exploration content, such as temples, dungeons, and other cool things to wander upon.
- More decoration blocks! Being primarily a creative builder, I would like to see lots more customization, though we've come a long way already
- More mystical biomes. The Nether for example is awesome and creepy. Would be cool to get different areas like that, such as a magic cave.
- Preferably reprogrammed out of Java into another form of code... Java seems sloppy, though if it's too late to move, just program minecraft to use system resources smarter.
There's probably more, but this is the top of my list
