So far so good; I assume at some stage we will be given an idea as to how Harry comes to be in an experimental laboratory under the auspices of a futuristic Mengele.
Other than that, I leave to you. Since I am unfamiliar with the Firefly universe and not particularly well read on the Star wars saga, (OK, I live in a deifferent universe from everybody else:-)) any familiarity with either will pass me by.
Ave atque vale, Clivius.