Regardless, the TSL team have released a playable demo of the game!
I've downloaded, but haven't played it yet, aside from just going to have a look at it. It looks gorgeous. There have also been some new wallpapers released and probably a few other things since the last time I checked the site, but go and see for yourself! Here: tsl-game.com.
The demo is located here: http://www.tsl-game.com/trilogy.
To celebrate, here are a few new icons made from the new wallpapers.