I think it was worth pointing out that the last two carded figure series were re-releases of the individually boxed series 1 and 2, so the next likely carded RE-release would be the series 3 figures. However, there has certainly been a precedent set for new unique carded figures, namely the Boba Fett series, although that was also released as individually boxed figures as well. And we have also seen new single figures released on cards only: shadow stormtrooper, blue snowtrooper, etc., but I think these have been all, or mostly, repaints, haven't they?
So, in general, new (i.e., previously unreleased) figures on cards is still a possibility, which to me is what I think bigj was getting at. So, who knows what's next for new carded series? Did anyone predict a Boba Fett series? That was a total surprise to me. I like them but personally would have preferred the variety of a multi-character series instead.