I don't think one should expect this series to be like a Nancy Drew novel were everything conveniently gets wrapped up nicely in a bow by the end of the story. I fully expect the story will complete Kvothe's story but like real life there will be many questions left unanswered.
There is a big difference from "questions left unanswered, " and just finding out who the enemies are by the second book's end. I fully expect that the story will be "finished" as to the tale telling (even though he left a lot of ground to cover), but I sincerelly doubt Rothfus will stop there.