I’m in awe of the “Obey” deck. The art in those cards is stunning, makes me want to frame them and display them somewhere at home. I would love to see more collaborations with living artists, especially those that work with screen printed posters (like concert or alternative movie posters); as I believe it is a style that can translate very beautifully into a smaller canvas like a card. Artists like Álvaro P-ff, Kii Arens and Matt Taylor come to mind.
Regarding pop culture decks, I would love a Buffy TVS one.