A few useful/useless ideas
 

1. I think a playerexits flag would be pretty handy. :P Or maybe a testwarp(x,y) thing to check if the player was about to step on a warp square.. but that wouldn't stop you using warping NPCs to sidestep that..

2. I seem to remember this being a npcserver command, but enablepms and disablepms would be useful for scripting jails in non-p2p without going through serveroptions.txt.

3. Support for npcserver commands in offline Graal.. :o Maybe an upgrade patch for p2p users only? (Or is there already something like that?)

4. Simple, but disabled: setplayerprop #n! (This can be worked around in online mode with a "setplayerprop #c,setnick whatever", but setplayerprop #n,whatever is so much cooler. XP)

What do ya think?

Most of these are possible on the NPC Server ;P
Well except for the offline thing, which would be nice.