The latest Project Genom weekly update has been posted that provides interested fans and players with a look at the most recent game improvements. Of note this week, the team has completed all of the mech animations (YAY!) and is hard at work on creating a new volcanic location. Lastly, the team feels that "rivers need to be refined as they are inadequate and inappropriate".
Our team created a separate spline system for the rivers so we created visual interactions between character and water, proper collision, and seamless material. This system also opened the possibility for the rapid creation of the navigation system and the underwater world. Large animation pack needed for this system will be the main difficulty rather than software implementation as you may think. In any case, the new rover system of rivers will be introduced soon and won’t require any changes in the landscape.
You can learn more on the Project Genom site.