Slots will get a buff with a progressive slot machine feature and free spin mechanisms, but that will happen after a lot of other things which include finishing 2.0 / adding the new games and getting our rewards program rolled out. Theoretically, this whole upgraded slot system is already designed, it just needs proper implementation which isn't at the top of our development list right now. So it will come, eventually. The cool thing we developed is that there is a real chance that the progressive jackpot can become big enough on about 10% of occasions to make gamblers money as they chase the final jackpot which could lead to a fun mad dash. This would make it truly one-of-a-kind in the provably fair slots category if I'm not wrong

As far as promotional features with your other question, those in conjunction with the rewards programs will be focused on after 2.0 is released. There's a lot of ideas. Regardless, traffic has still be steadily increasing each month which is a good sign. But hopefully with 2.0 and promotions MintDice will be one of the top casinos.