HTC 10 reportedly won't have a version running Windows 10 Mobile
It looks like you're not likely to see a Windows logo on an HTC smartphone ever again. Or not anytime soon, anyway. Back in 2014, the One (M8) for Windows was basically the Windows Phone running version of the Android One (M8). Hence, some people may have hoped for HTC to pull the same stunt with this year's upcoming flagship device, which will be called 10. The hopes were there despite the fact that 2015's One M9 did not get a Windows variant.
According to Evan Blass (of @evleaks fame), neither will the HTC 10. He firmly stated today that there won't be an iteration of the HTC 10 running Windows 10 Mobile.
So it turns out that HTC has chosen to stick with Android alone for its smartphones, at least for the foreseeable future. On the other hand, if you're looking for a high-end Windows-powered handset, HP has surprisingly announced one at MWC - and obviously there's also Microsoft's very own Lumia 950 and 950 XL duo.