Users from all platforms are welcome here, and our differences should not matter. Snapshots of all updates are allowed, and if you can find images of Work In Progress items, please upload them here. Speculation as to what they could be is permitted. But like with the other forum pages, we have to follow the rules.
I'm sorry, but this thread is a bit too broad to be allowed. This forum section is only for the Java edition of Minecraft -- other platforms have their own sections for discussions. Speculation of what Mojang might add to Minecraft should be posted in the Suggestions section of the appropriate platform, unless Mojang has already provided hints or information about the idea. People can post discussions about what Mojang is hinting at or showing as possibly being added to Minecraft, but there are already numerous threads that people should use for that.