User blog comment:Bronzey/Details of apparent next ME2 DLC pack - "Arrival"/@comment-1691295-20110224084200

Ooh Destructoid info (see Illusive Man's comment) strongly suggests Batarian involvement. I really hope this follows on from Bring Down the Sky. Even if Balak's death/survival/capture itself doesn't play a huge role, BDTS did hint at grander things going on with the Batarians.