Before Im start I want to say you - I'm not from America, I bad know English. Im Russian. Okay, Lets start.
1) Gamerule "Without Death title".
On my map I need to make when player dies he momentally teleports to the jail, but with Respawn Title that cant be maden. I want to make gamerule for disabling death title. Ex. : /gamerule noRespawnButton true/false
2) In-Game "NBTEditor"
I know mod In-Game NBTEditor, but he for 1.7.10 and older, I need newer. I want to Minecraft has own NBTEditor. With that NBTEditor will be easy to make custom items.
3) Permit § to type.
We all want to make color names and lores easy, without MCEdit, NBTEditor and another stuff.
4) Undo /fill, /replace, etc
I'm want to make command-like //undo from WorldEdit. Ex. Im casually filled all my map, I'm want to undo it, but I cant.
5) Full Custom Items for Map
I want to make a folder in all maps, like /saves/betaworld/customitems for making custom Items. For make custom Item we need to make new folder with any name like testitem, then we get /saves/betaworld/customitems/testitem . We need to export a texture for that item on 64x64 size named texture.png . All settings for item will be put in item.cfg. Like this :
And when this Item is complete we have this item only on own map, where we modify this all. And before adding this item we can use this item for map.
6) Right-Click Check
I'm want to have something like scoreboard objective for checking right click on item, for making items like on servers.
7) Own commands
I want to add custom commands, ex. /customcommand add test and when we added we can use this command, like /test but on start this command will do nothing. But we can add scoreboard objective, like customcommands.test.use and use this in command blocks for checking uses to make events.