It has been confirmed! HTC will be bringing the Lollipop update to most of its handsets along with its new Eye Experience software!
The HTC One M7 and M8 will be receiving the Android update late this month or early next month for the GPE versions. The Sense based variants will be seeing the update only next year in January or February.
In January to March next year, the Android update so be rolled out for the Desire EYE, One (M8) Dual SIM, One (M7) Dual SIM, One (E8), One (E8) Dual SIM, and Butterfly 2.
In March and April, users using HTC’s One Mini 2 and Desire 816 should be receiving the upgrade. Lastly, the One Max, One Mini, and Butterfly S are in line for Lollipop somewhere between March and May next year.
Unfortunately, no news has been released regarding the recently announced 64-bit Desire 820. Along with this device, the handsets running on MediaTek processors are still being evaluated and may not receive an update.
Take this list with a grain of salt and this may be changed in the near future!
Source: Android Authority