Hogwarts:

Which Hogwarts teachers are married, and what significance does that have to the overall plot? Why haven't we heard about their marriages before?

Is Harry a descendant of Godric Gryffindor?

Who will be the next Head of Hogwarts? - Diane

Are there other Hogwarts heirs besides Voldemort?

Who is the series's last Defense Against the Dark Arts professor?

Will Hogwarts open in the fall?

Jo has said that Ravenclaw will "have its day" - how?

How/why will we see the Ford Anglia again?

What will become of Dumbledore's Army? - Marty Forsythe

Will Voldemort's curse on the Defense Against the Dark Art's position be lifted? If so, how will this happen? - Gred&Forge4ever