Don't think they can release any more WM devices now. Probably won't hear anything for another year.
I'm really hoping MS gets HP to make the device (or at least a device launching alongside their own) - The Surface devices have been pretty disappointing lately. I really do think HP could make a better device than MS, especially if it's a x360 device, just look at the Spectre x360 or Elitebook 1020 x360. HP has had really solid hardware lately, and these geared hinges are much nicer than anything MS, Apple, or any other OEM has for convertibles.
And MS has been disappointing lately (at least in my opinion) with lack of real innovation (the original Surface tablets and Surface Book are the only two truly innovative ones), odd design choices (no USB-C, plus a ridiculous excuse for not having it), and the hardware doesn't seem to be as polished (overuse of adhesive, potential quality issues, and not quite as elegant IMO).
I think a "more practical" HP device launching alongside a "showcase" MS device would be ideal.