Well, considering this, I highly doubt we're going to see any new hardware out of Microsoft anytime soon. In fact, much like what happened to Blackberry, this is probably the beginning of the end for Windows 10 Mobile:
https://sg.finance.yahoo.com/news/best-microsoft-phone-now-samsung-165459551.html
Yep, that's right. Microsoft is going to start selling an android phone in their store for the first time ever, which means that they obviously have no new mobile hardware planned any time soon (or ever). We know how this one ends. If Microsoft's few remaining smartphone users begin to adopt the S8 en masse.....which many of us will since a lot of us are using 5-year-old phones with no flagships on the horizon......then the Surface Phone hopes are pretty dim.
You're not going to funnel your users to Android and expect them to return in two years for a Surface Phone. So as sad as it makes me, I think we can declare Windows Mobile and the Surface Phone dead.