One of the Trophies, "Covert Action," refers to a Dr. Amanda Kenson, who was previously mentioned in a recent Cerberus Network update:
Historians and astronomers alike are abuzz tonight over a new paper published by Dr. Amanda Kenson of the University of Arcturus ... "Only a small fraction of the mass effect relays date back 50,000 years," she writes, "The majority are far older, indicating they were created by a species predating even the Protheans." ... What civilization could have spanned the galaxy for not thousands, but millions of years? If this were the case, we should have found mountains of evidence of their passing. Where is this species now?"Some believe that "Arrival" can refer to the arrival of the Reapers, setting up events for the upcoming Mass Effect 3. Others, however, are more fixated on figuring out how to acquire one of the more ominous Trophies for the DLC: "The Ultimate Sacrifice." Wasn't dying once sacrifice enough?
[Thanks, Shane! Image credit: Vamplosion]