In terms of speculations for the next expansion, these are the dates of the previously released expansions;
Denizens of Shim’zar: August 16, 2016
Rise of The Bloodbound: December 15, 2016
Ancient Bonds: March 14, 2017
Unearthed Prophecy: July 11, 2017
Based on this data, Duelyst has an expansion approximately every 3~4 months. Based on this data, we should expect Duelyst’s expansion in either mid-October or mid-November. Due to the timing of this patch and the pixel previews that we already have, I would predict that we will have card reveals at some point in mid-October, followed by the next expansion being released in November. If the expansion is released in the middle of November, I think there is also a good chance that the expansion after that will be released in February (since UP has been released in the month before the release of DoS, and I predict a similar thing will occur with the next expansion in relations with RotB).