The deck has some pretty awesome flexibility at the moment, but I do think that there's room to expand. Especially for games that have a CCG quality to them it would be very useful to be able to search through a deck. I know I also wish we could choose where the cards that are recalled to the deck are recalled to, either on top or bottom. I'd like to try doing a Pandemic conversion, but that requires being able to reshuffle the discard pile and placing "on top" of the deck, as well as being able to deal a card from the bottom.