Good question. I don't know if we have an ETA on that.
I know there's a programmer working on it.
I think there's no ETA for smart contracts, but they are under development. But there's also more coming, as i quote dev's words: "We will be doing a marketing push in the coming months, along with a cross-platform GUI based in electron. The behind the scenes improvements we made may seem boring, but they are in fact laying the groundwork for the amazing things to come. Stay tuned... "
And also this: https://forum.decred.org/threads/stake-pool-is-now-open-source.4066/#post-22436
So there's lot's of features coming.