The Ubisoft Forums have word that beta testing is now underway for a new domination mode for Anno 2070, and open to all owners of the strategy sequel (thanks Gamer's Hell). This FAQ has all the details, and here's a bit on the new mode:

In the domination mode two teams with up to 5 members are fighting for the highest score. You will get points for solving continuous singleplayer missions with an increasing level of difficulty: Alone or in coop. If you achieve more points than the opposing team in a mission, you automatically win this mission and gain access to other missions with different tasks.

The domination mode works asynchronously, which means that you do not have to be online simultaneously. Your progress is automatically transmitted to the server, as soon as you save or solve a mission successful. For example you can play one hour, leave the game afterwards and then re-enter it at any time. In the meantime your team members will be able to use the saved game to continue.