Besides releasing the above trailer, Namco Bandai Games also sent out an official press release about Soul Calibur V and its existence. As usual per these types of announcements, details are extremely scarce — but there are some present.
According to Namco, the story “picks up 17 years after the events of Soul Calibur IV with new heroes and returning warriors clashing in an epic showdown between good and evil. The tale of Patroklos, son of Sophitia Alexandra, unfolds as his family’s destiny intertwines with the Soul swords.” In addition to the obvious confirmation of Patroklos as a playable character, Namco personnel also confirmed the inclusion of Siegfried (then again, he is yammering away in the trailer).