Idk, 4.0 just got released with new updates such as joint textures and hair, and I don't think Toribash will be done until its members are done with it. Especially around the forums and IRC. Some people only go on irc nowadays because everything else has gotten boring to them.
This is the process I seem to find happening more and more often.
1. You play the game.
2. You get really good at winning.
3. Game gets boring
4. You try out art stuff.
5. You "quit"
6. You return
7. You lurk around the forums and rarely go in game
8. You either quit altogether, troll the living shit out of everyone, become a hacker, or become a part of Toribash's staff.