I think it doesn't matter if it lives or dies, Microsoft tends to kill their apps/services and restart them on a pattern (as soon as they are working, they kill them and redo them more badly than they were).
Zune -> Xbox Music (trash) -> Groove (trash at the beginning, took 9 months to make it usable).
Messaging (fb mess integrated - was trash then it got polished, it worked at the end, was quite nice) -> (killed fb mess) Messaging standalone, only sms -> messaging + skype (trash, then it was polished and it worked: awesome) -> killed it! messaging everywhere available now (trash, another 6 months probably) -> Skype UWP (probably trash looking at the history).
OS design (pivots - awesome!!) -> hamburger button -> now they are ditching the hamburger button again because Android is moving away from this design. Inconsistency all over the OS and apps. Hamburger on the top, on the bottom, ellipsis button instead of hamburger button in core apps.
People hub (awesome square for people) -> killed it! (now tile square shows circles of people inside - no need to say it's trash.
People hub (fb and twitter integration) -> killed it! (twitter no longer uses people hub, fb does not work properly with hub).
Lumia Camera (awesome app for taking shots) -> killed it! (windows camera - trash, updated -> trash, updated again -> trash, another 50 updates -> still trash).
Here Maps (great app) -> killed it! (Maps - trash!)
Xbox games (live integration - awesome achievements) -> killed it! (no more achievements, games are kinda standalone).
Alarm clock (it rang!!!) -> it doesn't wake us up anymore from time to time (trash).