Already been commented. No exact date yet, but to be expected in beginning of 2018. Thats what they said on REDDIT.

The teams wants to make this right, it kinda "break it or make" it due to the fact that SONM is developing good as well and they cannot afford another delay.

If you believe in this project and team, you can expect quiet growth, then an huge acceleration after release.

I personally like it atm, much less volatile and good time to buy in.