The next batch of downloadable content for Final Fantasy XIII-2 may be Mass Effect related, according to Siliconera, which is reporting that a "source" told them of the upcoming DLC.
The precedent has already been set as Square-Enix made a deal with Ubisoft to add a DLC pack that will allow players to dress the time traveler Noel Kriess in a costume based on Ezio Auditore. It would be out of the bounds of reason that Square-Enix would make a similar deal with Electronic Arts for a Mass Effect costume, especially if the DLC were to be released around the same time as Mass Effect 3's release in March.
Final Fantasy XIII-2 was released three weeks ago on Xbox 360 and PlayStation 3, and earned itself a 7.5/10 score from Strategy Informer. The review can be read here.