Well, it's just messageboard scuttlebutt, really -- but staff have said that they have plans for an e-commerce set-up that I gather will be here at the Auctiva site as part of their features package. My impression is that it'll be non-eBay, non-auction storefront/shopping carts. Should be pretty cool once it's up and running. It'll make the Auctiva stores a little more relevant too.
It's in the message boards somewhere but it's just been mentioned a couple of times in passing..