EA could be preparing to branch out with its already diverse Sim universe. The publisher has filed a trademark for a mysterious 'SimOcean', fueling speculation that we could soon see a new Sim game that takes players into the aquatic depths Earth's blue bits.It wouldn't too far fetched considering the diversity of the Sim series already. Sure, you've played SimCity, but what about SimCopter, Sim Ant or SimHealth? Yeah, they happened. Maybe SimOcean will turn up at E3...