When beta comes public, we'll be the first to let you know. Check back to our site often. Yes, and No. It all depends on how the game was initially started and configured. No, unfortunately it does not.
Games usually span anywhere from a few weeks to a few months.
When you quit, the server will automatically take over and control your units and game for you. You also have the option for your units and resources to be controlled by an ally. In addition to this, there will be options to limit how many moves you can make every 24 hours. This puts a cap on those powergamers who are able to play all day. It's going to resemble Earth, spherical in shape.