We haven't released any new cards yet. All the cards have been there from the beginning.
It's just a matter of more people opening more packs and eventually someone deciding to sell the awesome historical card they got rather than keep it.
We'll likely have one new card coming out related to a special event pretty soon, but as alluded to, we'll kind of make a big deal about that. We won't just slip it into the packs and wonder if anyone notices
