To Google, the Nexus 5 is as good as dead. It has been around for about 3 years now and with Google already moving forward with the Pixel device, you would think that the Nexus 5 users will be dropping the device as soon as they can but they are not.
The Nexus 5 users are not ready to kill off their Nexus 5 yet as the device is still pretty reliable. So far, one of the biggest issue with the deteriorating battery life but the users quickly fix that with an upgrade.
The other issue is the operating system. Since the device is already a few years old, Google will not be supporting the device anymore but the users have been kept alive thanks to independent ROM developers you had made sure that the Nexus 5 is up to date.
The Nexus 5 is still regarded as one of the best smartphone from Google and we are hoping that the Pixel 2 will be able to match the Nexus 5.