Being worked on over at Loverslab and on JP forums. For now we can get textures from Estival Versus to work in the dressing room but not ingame. Card images can be edited easily. Copy of my post on LL:
Extremely simple proof of concept card mod. Card images are in \GameData\card\nw , 3 images per file of varying sizes. Images must be 1024x1024, 512x512, and 128x128 with transparent space to the right of the card. I just grabbed a random card from the New Wave card edits.
File included for testing purposes. Back up 100_08_0002.cat before use (requires Bashou DLC).
Note to mods: Don't move this to the Adult Mods board, this is nowhere near done.