James, our exchange developer has nearly finished the implementation of the advanced orders. First tests within our testnet showed really nice progress. You can see the order types described here: http://gamblex.org/concept/

Darren is currently tinkering with the blackjack algorithm. The goal is to make it easily provable verifiable. For this to be possible he is tinkering around and has a couple solutions that he is currently implementing and testing, we will choose the fastest in the end.