Mass Effect 2 ‘Arrival’ DLC Spotted On PS3

BioWare forum user ‘Vamplosion’ spotted something unusual when installing a PS3 patch for Mass Effect 2; references to an unreleased DLC pack named ‘Arrival.’
A lengthy thread ensued, featuring a couple of screengrabs that seem to confirm Vamplosion’s story. Whatever ‘Arrival’ is, it has three PS3 trophies linked to it.
The descriptions for these trophies are as follows (obviously, if you feel this will be a spoiler, look away now):
The Ultimate Sacrifice
– Complete the Arrival DLC

Last Stand
-Survive all five waves in the battle for Object Rho

Covert Action
-Rescure Dr. Amanda Kenson without attracting hostile attention
There’s no official word from BioWare on the subject (granted, it is President’s Day here in the US, so they may be on holiday,) but based on the evidence provided, ‘Arrival’ does seem to be legit.