Astute Mass Effect fans noticed that, in the screens accompanying news of the upcoming extension "The Lair of the Shadow Broker," Shepard's packing two weapons currently unavailable. BioWare's confirmed a new weapons pack is coming, earlier than this next DLC.
BioWare's Jarrett Lee took to the forums to confirm what people were seeing was authentic. "They are in fact part of a different pack that will be released prior to Lair of the Shadowbroker - more details coming very soon. While this was simply intended to tease them I can see how it could be misleading, so I must apologize for that."
That said, "Shadow Broker" does contain "some *really* cool stuff we haven't revealed yet," Lee said. "And actually the very coolest part of the DLC (imho) will be something we absolutely won't reveal in the marketing or PR, to avoid spoiling it. I think most of you will find it to be our most satisfying DLC release yet for ME2."
Lair of the Shadow Broker - Liara DLC Announced [Mass Effect 2 Forums; thanks to Lauren P.]