So rumours are out pointing to Q3 2018 release of upcoming Turning architecture. Again just a rumour, but this would bold well for the Nvidia Camp. A very nice boost over the GTX 1080 and potentially outdoing the Titan Xp (based on the rumoured specs)
If true, then we can expect significantly more information leaking out during the next few months.
One thing to note though about rumors, is that what I have noticed is that they tend to be a bit less accurate the further out they are from the actual release.
Now the Ryzen rumors as of this month were pretty accurate in many cases, but then again they were made within a couple weeks of the official release. Nvidia Turing is not supposed to be officially unveiled for a few months yet.