I'm not much of a story writer person, but here's something off the wall I was thinking about. This has probably been thought of to death, I'm sure, but...
What if... the future, the Earth is populated with homonid animals (furries basically). Humans died out of disease of some kind a long time ago, but not before becoming ridiculously advanced technologically. Their idea to preserve humanity is to put their minds into animals, or some form of hominid animals they engineer over a long time. They initially think of just one species type (apes probably, maybe dogs) but they realize they need a more genetically diverse pool, so they make a ton of hominid species. Long story short, a bunch pseudoscientific nonsense that justifies the earth actually being run by furries.
Anyway, the story is told at the point of view of a writer, some tens or hundreds of thousands of years in the future. Furries are evolved basically to the point where humanity is now. Their evolving takes a lot longer, due to a confusing and troubled history (ancient technology is lost, everyone's extremely diverse, can't get along, etc). The writer "writes" a letter to humanity from the past, circa 2016, describing how awkward and ridiculous it is, and wonders how awkward things were back in their time. He's particularly fascinated that they they are just one species and how simple things must've been. He tells them a lot of people often joke at the reasoning for "creating" the beings that they've become. And who knows what else. Basically, he's comparing then to now, and expounding upon it.
Ok that was weird. Back to reality.