Priorities:

1) Giving building rights. (Owner can give rights to build, will decrease number of griefing.)

2) Bigger variety off building material. (More options to build what ever you want, without limits. Like in minecraft ot Planet of cubes.)

3) More power to owners of a world, easier to ban. (I've been there, it's hard to stop griefers from ruining the world since it takes 6 reports.)

My personal favorite would be more building materials, more stairs, trap doors etc. I'm a building entusiast but when I try to find the right block to build a statue or maybe a yacht, I don't have those options. There are some blocks from Planet of Cubes but not all, I wonder why?

Good ideás:

1) Signs (Like in MC, the player will have it easier explaining buildings and even making rules and games, instead of making huge letters.)

2) Day/night option on worlds. (To make it more realistic)

3) More sounds. (Some kind of music or nature sounds maybe?, since the game feels mute it would create a good atmosphere.)

4) Animals/pets on multiplayer. (Who doesn't like cats playing a piano am I right?!, even create farms and zoos....and unicorns.) :3

5) Voice chat. (Would be neat but mostly unlikely.)

6) Mini-Games. (I'm not sure if it's possible to add swords to multiplayer and make a swordfighting server or something like that.)

These were just some suggestions, I know you have alot of work already so I don't want to preasure you.

Thank you for being such receptive moderators and keep up the great work!

Sincerely// GreatMindsWC