Another guess: I'm going to wager that Ryan Laukat will contribute card art in this set, since he's done art for every single previous set, excepting Promos. Yes, that includes the new Base Cards (he did the Treasures). Also highly likely: Matthias Catrein (is basically synonymous with Dominion art, doing more than half of the base set, multiple box covers, and been art director), Alayna Lemmer, Claus Stefan, Harald Lieske, Julien Delval, Martin Hoffman (all of them have contributed multiple card arts, including for Adventures), and most likely Marco Morte (he did seven arts for Adventures, as well as Summon). Also Lynell Ingram will probably get in at least one - hopefully it will be more like Princess and Mandarin and less like Borrow. Oh, and Kurt Miller will probably have some CGI art thrown in there.