Every time I seem to promise something then life takes a good strong whack at my free time.
There will be a release tonight or tomorrow that gives server admins some tools to help clean up griefing. Also the foundation is then in place for general scripting of admin tools as well as player tools.
Then the plan is to finish up the property user interface and roll that out. I'd like to say it would be another week... I'll keep my fingers crossed. The custom tool ability above actually may help out with this since there is no player inventory yet.
Next I go back to trying to get physics stable enough to include (turned on) in a release. There may be a few iterations of that as I add big objects and ropes, hinges, etc..
Then the plan is to get to Mobs... to include animation, AI, etc.. I may do AI first with no animation and the swing back around for animation. Somewhere during this process, I will add NPCs that the player can interact with. It's possible that player inventory gets rolled in with these changes, too... depending on how well things go.
Somewhere in the midst of all of that there will be enhancements to the world generator, too to finally include caves, dungeons, towns, and cities.
My super-extra-aggressive schedule is to try to get all major systems implemented by December... but life has a way of making me eat those kinds of plans. Especially since that's already a lot later than I originally wanted anyway. (For example, physics was supposed to be done in July and I'd be almost done with AI by now.) Oh, well.