1) Adding GM ability to flatten a given square dimension to the mentionned level
2) Adding a private messaging option
3) Adding roleplay-ish commands like /me (/me eats an apple. -> That would show locally to other users *Firstname Lastname eats an apple.
4) Option to show/hide text above head ([LOCAL] text or [GLOBAL] text)
5) Ability to add more chats by server managers, and deciding if they're local or global (ex, for roleplay servers, you'd need a chat for local OOC (out of character) messages, and the regular local one for IC.)
6) Adding GMs a way to teleport to/from a player