Board Thread:Anime/@comment-24356739-20170701075622/@comment-26974626-20170702151040

If these theories turn out to be correct, then that means that history has been altered by Kanesada since the moment he saves the child in  episode 1. In real life, Horikawa is supposed to be missing and presumably lost forever while Kanesada is 100% safe and sound, but because of all the foreshadowing that points towards Kanesada's death, then the reversal in their status also suggests the fact that history has definitely (and already) changed.