Open the Beta Up to Non-Preorders
We need more people. We need more feedback, we need more people playing the game, and we need different perspectives. You can't expect to get a broad, reliable spectrum of gameplay analysis and feedback from people who are (obviously) already going to buy the game. You need to get feedback from people who are on the fence, from the subset of potential players who are not as inclined to go for Demigod right away.
You can't expect to get a lot of useful feedback from people who are, for the most part, pretty happy with the game simply based on its description.
Besides the feedback issue, we simply need more people. The forums are fairly active, but they could be a lot more so. Online gameplay is somewhat active (read: not very) and it could really use an improvement. Between the desync and connection issues and the relative lack of people playing, I find myself very lucky just to get a 2v2 going that lasts for more than 5 minutes. It's pretty hard for any of us to give good feedback when it's that difficult to consistently get games going. This game isn't designed solely for 1v1 and 2v2.
Bring in more people to help out with this game. It has potential, but having more testers would really help with this.