Jon Snow and Daenerys’ ancestors will be swinging by in a significant way. As House of the Dragons’ title suggests, the Targaryens will be its focus. Casting calls have gone out for Aegon (Jon’s original namesake at birth), and his older and younger sisters, Visenya and Rhaenys, respectively, per Knight Edge Media. What is next? For now, this fan hopes that HBO’s new show can do these things better.