http://www.psacard.com/Articles/Arti...-2014-national
So I didn't answer earlier and I'm kind of reviving this thread, but here's my pick for the next set to "pop." It just got a lot of press being featured in the PSA card series "Cards that never were" and these fantasy pieces were given away or were prizes during the National. I think the set is beautiful, there's enough around for new collectors to start picking them up, and they got some free press.