Something I generally want to see more of is NPCs and (well executed) PvP. Since you can script, you can create a kill for exp type system which I very much hope to see in your RPG. A HUGE problem with most blockland RPGS is that they simply consist of "click y until you get resource x so you can buy z and then nothing." Less mining/woodcutting/fishing type things that are way too monotonous, PLEASE.
What I want to see is more player on player interaction instead a point and click adventure where you really just play by yourself.
Keep dumbasses out.