If this has already been asked please just give me a link...
When the game starts getting large in terms of players, and the game is complete, what will your plans be then? Will you start work on another game and forget Airships, or just live, eat and drink Airships?
There's a development plan that lays out the remaining stages to version 1.0. After that, I might develop an expansion pack or two, or start working on the next game right away. :)