GnomeBob
Every time a new chapter comes out for this story, my first thought is if a Doctor Who chapter is here. I get disappointed when I don't see a follow up to that Doctor Who chapter from earlier. Did you do a follow up on that chapter that I missed? I still feel disappointed not seeing Amy's reaction to finding out that Harry Potter exists.
Big question time! DEADPOOL! You could totally have Harry (or one of the girls) break up a magical creature smuggling organization and end up with a psychotic unicorn that was harvested for years. You could dump the unicorn on Deadpool, solve one of his dreams, have some magical world interaction, maybe have the unicorn fix Deadpool's Avacado-ness.