Board Thread:General Discussion/@comment-44796386-20200324201506/@comment-44796386-20200324205702

I mean yeah it's possible but in the end you can't (of course you can but I think it would be lame and a red herring) reveal Emilia as Satella and say she used some Magic that ensured her existence in the Timelines where Emilia dies...

On the other hand it's really hard to have an explanation for Satella being obsessed with Subaru, maybe you could say Satella is a girl that fell in love with Subaru and used Emilias appearance since Subaru is obviously in love with Emilia.