The wishlist/tradelist auto generation was updated to allow customization for individual cards. Originally, the wishlist was generated using the formula '4 - collection' for all cards. That formula was rigid and didn't allow you to have different values for different cards. In order to make the system more flexible, a new field NEED was added. The value of this field will be used to calculate the wishlist and tradelist values as follow:
Wishlist: NEED - COLLECTION
Tradelist: COLLECTION - NEED
By default this field is set to 4, and can be changed in the card view