-One is a door. Some servers have these; they're an area of blocks where, once one block is clicked, the region disappears. You can walk through and afterwards the blocks regenerate. /door could be the command and you select two blocks as perimeters (similar to cuboid and spheroid).
-Two is physics. I've read that lots of people are wanting this command (and I happen to be one of them!) The command would allow water/lava to flow in a certain world. The command could be /physics *World_Name*.
-Three is a command I thought of last night. I would call it pyramid. When making a roof, for example, and you want a 1 over 1 slope of the blocks, you are well aware that you must create one block out to the side, then one block up, and remove that "in-between" block afterwards. This command would generate a "pyramid" shape by selecting the two perimeter blocks (like cuboid) and this slope effect would be generated upwards.
Thanks for all you're doing right now. If you don't want to include these commands, it's up to you. I just thought I'd suggest them
