In what could be seen as good news for users of Taiwan-based HTC's older flagship smartphones, the handsets will get Google's more recent Android 5.1 (Lollipop) instead of the Android 5.0.2 (Lollipop) incremental update.
According to official tweets by HTC's ROM engineer (see below), none of the current HTC devices, with the exception of the HTC One (M9), will get Android 5.0.2 and the HTC Sense 7.0 UI combined.
However, HTC's ROM engineer also states that some models of the currently existing HTC smartphones will directly get the more recent Android 5.1 with Sense 7.0, thus bypassing the Android 5.0.2 firmware upgrade.
At this point in time, the list of devices confirmed to receive the Sense 7.0 are HTC One (M8), HTC One (M8s), HTC Desire EYE and the HTC Butterfly 2.
As of now, the Android 5.0 update is currently rolling out to HTC devices such as the HTC One E8, HTC Desire EYE and HTC Butterfly S in multiple Asian countries. This rollout is expected to extend to the US and UK in the immediate future.
Besides, users of the older HTC One (M7), who have subscribed to T-Mobile's wireless network service in the US, should notice the Android 5.0 OTA OS update for their smartphones.
Therefore, users of the older HTC flagships can check their devices for newer OTA notifications that could very well represent the Android 5.1 OS update. Users of these devices can also check for the Sense 7 UI that is expected to roll out via OTA.