Read this:
http://www.huxleygame.com/forums/viewtopic.php?t=95
And then go on the basic race/game information from the gamespy previews and on the main huxleygame.com page.
Otherwise this is all speculation, it could be 1 char, to 15... no one knows as you can see.
After you read the factual stuff (what I posted) your guesses are as good as anyone's here.