It will only get software updates for another year and security updates for 2 more years, it's 1/3 of the way through it's effective lifespan. The supported lifetimes are far too short when you buy in release day, let alone a year later.
You should be able to manually update it to newer android versions after the official updates end since it has treble. The kernel as of now is still stuck on 3.18. Unless the blob makers update to 4.4, that will be the limiting factor regarding security updates.
