The idea of a what if within a what if is unique and I think it is something you should continue to do for your channel it definitely is interesting ( I've already read this fanfic but it was still enjoyable )
Since you asked for advice. Here are my suggestions 1) produce what you like if you are not very very strange people with like it too. 2) Let people know where you got it from expectantly if you don't finish it. (This is how I decide if I subscribe to the site or not) 3) Something I don't see often. Try to have up pictures who is talking at the time. I don't see the point of the Transcript but I guess that is a matter of taste.