Microsoft from what I read has these made by Pegatron ( from https://en.wikipedia.org/wiki/Microsoft_Surface )
So my bet is the design could leak to other makers. The problem I have is that issues (see wikipedia) seem to burnt into the design so for me so I won't buy another. Yes I had a Surface RT and it was more of a trial to see what it would take to get our software on RT. In the end the effort and Microsoft hurdles proved to be too much and the project was closed.
MS announced yesterday at Computex Taipei they will release a Windows 10 convertible The Windows 10 machine 2-in-1 will be made made in collaboration between an unnamed local manufacturer (OEM) and Porsche Design.
The convertible will have a 13.3-inch screen, runs on an Intel processor, and will come with a pen. The device also supports Windows Hello 2.0 biometric readers, Cortana, and Windows Ink.
So will there be a Surface Book 2 this year? I'm guessing yes since the Surface Book and Surface aren't OEM products. I expect MS to release at least 2 Surface brand machines in late 2016 early 2017.

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