HTC has just reiterated that the One A9, One M9 and the HTC 10 will get updated to Android Nougat.
The company had earlier said the same when Google announced Android N. But there is no word on when the update would be rolling out. There may be other HTC smartphones in the line-up for Android 7.0 Nougat update, but there is no confirmation on that point.
Source: HTC