A collection of bones are found, then we discover why the person died, then we discover whose bones they actually are.
Blade Runner 2049 starts out as simply a story being told 30 years after the events of the first movie, but as each new clue is uncovered, we take a step back to the original movie.
Maybe it was all part of the plan to create the child that everybody is looking for.
Each new detail fills in the time period between the films, but it also colors the events of the first film itself.