DLC for Mass Effect 2 called The Arrival?

So I thought The Arrival was a shitty aliens landing on earth movie starring Charlie Sheen but it turns out that it's some apparent DLC content for Mass Effect 2. Actually, that sounds like the plot of Mass Effect 3!

Apparently the latest PS3 patch update has revealed clues that the new DLC is on the way. Speculation abounds that this mission will be mission that bridges any gap between the and of game 2 and the beginning of game 3.

It appears that you can get Game Trophies for:

• "The Ultimate Sacrifice" - Complete the Arrival DLC.
• "Last Stand" - Survive all five waves in the battle for Object Rho
• "Covert Action" - Rescue Dr. Amanda Kenson without attracting hostile attention.

Clearly this is for the PSP but who's to say this DLC won't translate into the Xbox 360?

So who is this Dr Amanda Kenson? Is she as smoking hot as Miranda Keyes?

A Cerberus Network note offers some hints:

“Historians and astronomers alike are abuzz tonight over a new paper published by Dr. Amanda Kenson of the University of Arcturus. Her team claims that by testing the dust trapped in the gravity wells around a mass relay, and comparing its composition to that of dust clouds in the same system, scientists can create a timeline of when the relay passed through the dust. Her conclusion? "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." 

Dr. Aurana T'Meles of the University of Serrice met the information with skepticism: "While Dr. Kenson's methods appear sound, the asari tried a similar procedure centuries ago and discounted it. 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?"