Obviously, the Break time ep confirms Al is Subaru and we already know Flugel is Subaru, and we also know Hoshin is Subaru and obviously Julius is just Subaru's self-obsession given form and hence he is also Subaru.
Actually this is a very good point again connecting him back to Subaru, the powers they have seem to be specifically made to help specifically THEM survive they just decide to save others. Which a lot of the time doesn't work for poor Rienhard.
I so want them to use this music in the final arc of Re:Zero this shot, the cinematography, and especially the music is all too beautiful. It has melancholic undertone to it. I FUCKONG LOVE THIS