It appears that we might not see the Windows logo on HTC smartphones again ever or may be not anytime soon. HTC One (M8) with Windows logo, primarily, was Windows Phone booting version of the Android One (M8) when it was launched in 2014. So there were rumors and some people might have wished that the same will go for current year flagship smartphone HTC 10. However, despite of the hopes the HTC One (M9) introduced in 2015 did not has Windows version.

HTC 10 reportedly might not come with Windows 10 version.

As per Evan Blass @evleaks, the same will happen to HTC 10. He undoubtedly mentioned that there will be no version of HTC 10 booting Windows 10 on the board.

So it is evident that HTC will be running Android for it smartphones at least for the HTC 10. On the contrary, if you are still looking for some high-end Windows-powered phones, HP has come up with one at MWC, and one more is Microsoft-home brewed Lumia 950 and 950 XL duo.