Just throwing this idea out for consideration. What about a deck that has each card designed by a different artist.
Here is a successful deck that was created to promote designers and illustrators:
https://www.behance.net/gallery/Playing-Arts/11474649A deck with many artists would promote not just Discourse/52 Plus Joker, but custom playing card design in general. It could be sold/promoted to not just card collectors, but people who like to collect in general, and people who like to collect art, etc.
Like in the example above, each artist would get one card to design as they see fit. The best cards, such as aces, jokers and face cards, would go to the most established designers. The opportunity to design a card (beside the obvious established designers) could be offered to anyone who has had a custom deck receive funding on Kickstarter. Next priority might be artists who had good designs that did not receive enough Kickstarter funding or artists who entered the Discourse Design Contest. If not enough designers are found this way, maybe artists who have posted interesting card designs on Behance.
Each artist would only need to spend the time to create one card (they could even use the art from one of their existing cards if they wanted), in return they would get free exposure/promotion/advertising. Every artist would have their website on their card or listed on the ad cards.
I think Jackson Robinson has earned the right to do the card backs if he wants, or there could be a design contest to vote on it.
The box design front should probably have a Custom Playing Card / Discourse /52 Plus Joker theme, with the back describing the theme and the contents.
I'm sure The Discourse/52 Plus Joker could find a good use for the proceeds.