Well if we would get tarot cards, how many would be there? Because maybe we could play with them on existing rules, or larian could make rules of their own. Witcher 3 has gwent and we could have... any idea for name?
Pity the Gwent cards aren't the easiest to get hold of! I found an Xbone CE going cheap but I'm not sure where else a person might find them.
Obviously 
any D:OS2 game should be cheese-themed, at least in its name. Er... Stilton?